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Top 10 Longest Words In The English Language

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English is a funny language – at least, that’s what most believe. We aim to differ! The language is the most intriguing dialect spoken. 

Every word spoken/read/heard teaches us something valuable! 

Overall, it contains over 750,000 words, each describing something. Plus, every word comprises a dozen different synonyms (maybe more), thus presenting an endless list to learn.

Most English exponents recommend using simple, small, known words to communicate. The other person understands easy words clearly and responds better and quicker.

However (as proud nerds of the 21st century), it’s our academic duty to dig deeper into the language and uncover its hidden gems.

So, buckle up, nerds! 

20 Longest Words in English Pronunciation

Pneumonoultramicroscopicsilicovolcanoconiosis

Count the letter nouns. It’s made of 45 alphabets, making it the longest spelling term in English. Many may think it’s a made-up phrase. Despite that, it exists as a part of the language. 

It means – A lung disease resulting from inhaling sand dust and fine ash. 

Nevertheless, the term is a great tongue twister for word games. Good luck pronouncing it.

Hippopotomonstrosesquippedaliophobia

Many have a phobia of reciting long terms. It is called ‘sesquipedalophobia’. Ironically, this mouthful phrase has another variant. It’s the 36-letter noun phrase you see above.

Meaning – fear of long words (social word phobia) due to mockery or anxiety!

With such words existing, no wonder why some have this phobia. 

Supercalifragilisticexpialidocious

A big round of applause for Mary Poppins movie that first coined the phrase in 1964 in a song! Furthermore, the word is real and present in several Dictionaries. 

It means- wonderful or something extraordinarily good!

The word has 34 letters and is commonly used by writers whenever referring to the above movie and musical.

In fact, this term with the 2 above makes up the 3 longest words in English.

Dichlorodiphenyltrichloroethane

It stands for DDT in short and is a common phrase per the CDC (Centres for Disease Control and Prevention).

Its meaning – DDT is a tasteless, colourless, odourless crystalline chemical compound, also referred to as organochloride. It was primarily used as an agricultural pesticide. 

Trivia facts –

Othmar Zeidler, an Austrian chemist, was the first to synthesise it in 1874. 
However, due to its ill effects on the environment, wildlife and even humans, it was banned in America in 1972. 
It is still used as an insecticide in outside countries to control malaria-carrying mosquitos. 

The term is easier to pronounce and usually sounds like a merger of 2-3 chemicals. Nevertheless, the term has 31 letters and is right up there with the longest English words in the world.

Pseudopseudohypoparathyroidism

The word has 30 letters and appears 4th in our list of longest words in English. Interestingly, the term is well-known across all prominent dictionaries. 

Meaning – It is an inherited condition that results in shorter stature, oval-shaped face and tiny shorthand bones. The disease also hampers proper bone formation and hardening of soft tissues. 

PPHP is the shorter form for this term. 

Chlorobenzylidenemalononitrile

It is another long spelling organochloride chemical compound within our list of longest words in English pronunciation. It comprises 30 alphabets. 

It means – It is another form of tear gas much stronger than CN gas. But it also wears off quicker. 

Trivia facts –

It appears like a solid while crystalline compound or a beige-coloured powder. 
Cluster bombs or grenades deploy it.
Exposure can cause fatal pulmonary oedema or severe skin burns. 

Methylenedioxymethamphetamine

Referred as MDMA for short, it was first produced in 1912, mainly as a precursor to haemostatic agents’ synthesis. It is otherwise recognised as Molly, Mandy or even Ecstasy. 

Meaning – It is a potent psychedelic stimulant for recreational purposes such as altered sensations, empathy, pleasure, energy increase, etc.

It is illicitly used for its hallucinogenic and highly euphoric effects.

Floccinaucinihilipilification

It appears in several popular dictionaries despite being a non-technical term. It comprises 29 letters (including a series of Latin phrases meaning ‘nothing’ or ‘worthless’).

It means – It denotes something worthless or useless. 

The term was coined as early as 1741.

Hepaticocholangiogastrostomy

Many prefer to pronounce it as ‘Hepatic-Cholangio-Gastrostomy’. Nevertheless, it has 28 letters, and (yes) it is another invented term.

Means – It is a unique silicosis form resulting from ultra-microscopic siliceous particles. 

Spectrophotofluorometrically

It is another monstrous non-technical term that hails from the depths of the English language. It comprises 28 letters and explains the tool to measure light signatures (‘spectrophotofluorometer’)

It means- using the spectrophotofluorometer to measure the light intensities from vivid spectrums.

Antidisestablishmentarianism 

It was considered a taboo word as early English church authorities banned it. 

Trivia fact – The term was first used when King Henry VIII separated himself from the Roman Catholic Church in the 16th century as he wasn’t permitted to divorce his first wife, Queen Catherine of Aragon.

Thus, the meaning -– opposing the disestablishment of the Church 

It comprises 28 letters and features in the compilation of the longest words in the English dictionary. 

Psychoneuroendocrinological

This 27-letter word was initially coined in 1970. It is used in sentences as an adjective.
Meaning – It denotes a psychological study of connections between human hormones and their behaviours. 

That’s easy enough to understand. If only the same could be said about its spelling and pronunciation.

Radioimmunoelectrophoresis

The term has 26 letters and is not easy to pronounce (at least at first)! Word games it is the perfect challenge for any newcomer.

It means – utilising antibodies labelled with radioisotopes!

Pneumoencephalographically

This 26-letter monster is a name for a medical procedure. It is seen in most dictionaries and medical glossaries. 

It means – A radiographic procedure for checking the brain. It involves displacing the cerebrospinal fluid in the brain’s ventricles using oxygen and air to achieve a clearer X-ray image.

It certainly sounds like an awesome procedure, despite spelling so uncomfortably.

Thyroparathyroidectomized

Believe it; it is the concise way to state someone removed their thyroid and parathyroid gland. The medical process is known as ‘thyroparathyroidectomy’ (which is as long as the one above).

It means – Surgical removal of parathyroid and thyroid glands. 

The above word has 26 alphabets and is a common surgeon language spoken over a glass of wine or champagne to show they are more learned than the commoners present.

Psychophysicotherapeutics

Even with 25 letters, the word is simpler to pronounce than the others. However, it still rightfully includes amidst the 10 longest words in the English language (or at least in the top 20 list) across most dictionaries.

Meaning – It denotes a therapeutic approach to work on the mind and body. 

Some believe it could be a form of combined therapy (psycho denoting mind and physic, meaning body). Search the web to uncover more facts about this form of therapy.  

Uvulopalatopharyngoplasty

The term has 25 letters and is the name of a complex sleep surgery. It applies to those who suffer from sleeping problems. It is familiar to most field exponents as UPPP for short. 

It means – A surgical approach involves opening the upper airways and removing or remodelling the extra tissue in the throat. 

Trivia facts –

It is a popular surgery performed on adults for treating mild Sleep Apnea or excessive snoring in the USA.
The operation allows patients to breathe easily and get proper sleep at night.
The success rate of this treatment is 75-95% in patients.

Hyperbetalipoproteinemia

The term refers to a common genetic disorder seen in several patients in the US and worldwide.
 
It means – A disorder that occurs due to high cholesterol levels and beta-lipoproteins. The condition can cause atherosclerosis in patients during their younger age.

The term has 24 letters and is certainly one to include in your list of longest words in the English dictionary.

Laryngotracheobronchitis

Yet, we have another infection with a complex name with 24 alphabets. It primarily occurs in children but is treatable within days to weeks.

Meaning – The name entails inflammation in the larynx, bronchi and trachea. 

Trivia facts –

The infection occurs in the upper airways and makes breathing difficult. 
It is infectious and comes with a barking cough. 
Other symptoms include noisy breathing, fever and hoarseness.

Schizosaccharomycetaceae

Last in our list of longest English words in the world is this 24-alphabet monster. Moreover, it is not the easiest to pronounce either. 

It means – a family of yeasts/fungi belonging to the Schizosaccharomycetales order. It is also called ‘fission yeast’.

Trivia facts –

The yeast species is utilised as a cell and molecular biology model organism. 
It is also used in old-style brewing. 
The cells appear rod-shaped and are 7-14 micrometres (length) and 3-4 micrometres (diameter).

There is your list of the longest words in English.

Speak to our experts to learn more lengthy words and improve your language vocabulary.

You can also reach us for quality assignment/essay writing help anytime. 

Why Is It Important To Develop A Sound And Robust Vocabulary?

A robust vocabulary is essential for all facets of English communication – writing, reading, speaking, and listening.

Delivering a clear message with proper words is vital and basically the ultimate goal for academic learners wanting to refine their language competence.

Hence, the value of having an impressive English vocabulary can’t be underestimated.

 Below, we highlight some clear reasons why!

  • Proper vocabulary is the foundation of English communication.
  • A good stock of words is the ideal stepping stone to attaining a higher level of language proficiency.
  • With a rich vocabulary, you can understand various words conveyed with their meaning and respond correctly.
  • With a proper stock of phrases, you can boost your writing capabilities and express your views, thoughts and data more creatively.
  • Moreover, proper vocabulary knowledge helps you learn and think about the world.
  • Every time you find a unique phrase, you gain access to newer information.

Furthermore, research shows kids must grasp 95-98% of the words they read to know what they mean. With improved vocabulary, they augment their reading comprehension and language development. 

Of course, possessing a robust vocabulary also improves your occupational success. The majority of business operations run through a proper chain of communication. 

With a sharp vocab, you can seamlessly communicate data throughout every business process and guarantee your worth and success.

20 Interesting Ways To Improve Language Vocabulary

a) Read routinely. It could be books, web pages, magazines, newspapers, or anything in English. 
b) Listen to English news, audio and conversations.
c) Keep track of your vocabulary progress. Maintain a notebook and revise each day.
d) Set up an app to receive a new word each day. Several online dictionaries allow you to do that through a simple free subscription. Aim to compile a list of 100 longest words in English.
e) Keep the most difficult terms (or long spelling words) on your pinboard to help you recall. You can also create a list of the three longest words in English. Once you learn and grasp them, renew the list.
f) Play word games with peers or siblings.
g) Always dabble with various dictionaries and thesauri to constantly learn new words.
h) Practice speaking or writing with those nearly learned terms in coherent sentences. You can also refer to examples for clarity.
i) Indulge in vocab quizzes. They’re good for the brain (and also a fun pass-time).
j) Watch English movies with subtitles.
k) Find someone who loves to learn words like you and collaborate.
l) Understand the root of words to grasp their context.
m) Use word formation charts to stay motivated as you learn fresh terms.
n) Create a vocab theme on relevant words.
o) Read song lyrics to learn fresh words and their usage.
p) Make a list of synonyms and antonyms of each word you learn. 
q) Grasp prefixes and suffixes to process better language skills.
r) Arrange for weekly vocab tests within timed conditions.
s) Learn about word families and grouping.
t) Use learned words in normal conversations as much as possible.

How Can MyAssignmenthelp.com Help You Improve Your English Writing & Communication Skills?

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Most academic assignment tasks require learners to have sound writing, vocabulary and grammar skills. We provide them with all the writing resources (blogs/paper samples/examples) and academic tools (grammar checker, essay typer).

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Wrapping Up

Use the compiled list of the top 20 world’s longest words in English as your starting point. Learn to pronounce them and understand their use in complete sentences. 

Once you have perfected these terms, create a fresh list of other long-spelling terms. Repeat the learning process and again move to the next. 

Rest assured that the English language will always provide you with something new to learn and master. Eventually, when the world recognises your language competence, you will be respected, valued and welcomed everywhere. 

So, keep learning and improving your vocabulary.

Also, unhesitantly contact MyAssignmenthelp.com for expert assistance whenever you need it. 

Hopefully, the post proved insightful to you. SIGN UP TODAY and get access to more such posts.

Most Popular Questions Searched By Students:

What Are the Longest Words in The English Language?

Several students search the web for what are the longest words in English. Well, they will find no shortage of terms. 

The above section reveals the 20 longest English words in the world. That should get you started. 

However, you can always consult our language experts for more unique long-spelling words to boost your vocabulary. 

How Many Letters Do the Longest English Words Have?

The world’s longest words in English comprise 45 alphabets. The term is Pneumonoultramicroscopicsilicovolcanoconiosis.

It means – A lung disease resulting from inhaling sand dust and fine ash. 

Follow the above section carefully to learn more about long English words.

Which Long Words Used Commonly in Speech and Writing?

Some long words are also commonly used in English speech and writing. Those terms are mentioned below.

Transcendent (meaning- fantastic)
Sagacious (meaning – wise/clever)
Prodigious (meaning –amazing)
Disillusioned (meaning – having illusions about something/someone)
Circumlocution (meaning – using more words than needed to express a thought/idea)

These are merely a teaser of long terms for writing or speaking. Consult our experts to learn about more such words. 

Can You Provide Some Examples of Other Long Words in English?

There are countless long words in English.

Floccinaucinihilipilification
Hepaticocholangiogastrostomy
Spectrophotofluorometrically
Antidisestablishmentarianism
Psychoneuroendocrinological
Radioimmunoelectrophoresis

Refer to their meaning above!

Do These Words Serve Any Practical Purpose in Modern English?

Most long terms are non-technical phrases coined by individuals of previous eras. In modern English, only familiar long terms serve a purpose. Most of them appear unfamiliar to common readers without strong English vocabulary.

Still, as an English student, you must learn a handful of long words to improve your language vocabulary. It will establish your reputation as a skilled writer. 

Are There Any Benefits to Learning These Long Words?

There are clear benefits to learning long spelling terms. It proves useful for writing high-level academic papers and showing the instructor your impressive vocabulary.

It improves understanding of complex contexts/ideas. It also benefits you if you decide to pursue a career as a university professor or language tutor.

Are There Any Disadvantages to Using Long Words in Writing or Speech?

Long spelling words are not ideal for regular writing tasks. If you use it occasionally, it’s fine. But if you fill your work with such complex, long words, the text and idea may become difficult for readers to understand.

Furthermore, using long words for commercial, SEO, or web content may not yield fruitful results as expected. 

Aim to use them as less as possible. But feel free to learn them for your improved vocabulary. 

Are There Any Medical or Scientific Terms in the Longest English Words?

There are medical of scientific terms among the longest words in the English language. To name a few –

Pneumoencephalographically
Thyroparathyroidectomized
And, of course – Pneumonoultramicroscopicsilicovolcanoconiosis

Check their meaning above. They are indeed fascinating. 

Are There Any Record Holders for Pronouncing the Longest Words in The English Language?

The longest-known language is a compound term in Sanskrit (which comprises 428 Roman alphabets). Check the Guinness Book of World Records to know about such records or record holders,

Can You Provide Some Tips for Learning and Remembering Long Words?

You must understand that English comprises an endless list of long-spelling words. Since most are unheard of and rarely spoken, learning and memorising them may be harder than expected.

Still, it’s doable. Here are some tips.

Include new long words whenever you find them every day. Also, mention their meaning.
Use Google to learn about correct pronunciations.
Read them each day (both previous and newly included ones)
Utter them in front of the mirror in running sentences.
Keep practising and using them whenever you can in speech or writing. 

Harrison Walker

Hi, I am Harrison Walker. I am an avid traveller, a fiction blogger, and passionate writer. I hold a PhD degree in English literature and work as a full-time English essay expert for myassignmenthelp.com. Over a span of 10 years, I have helped students from various universities with their essay writing requirements irrespective of the academic level and topics. I have written guest blogs for prominent academic writing sites that guide students on English essay and assignment writing. When I am not busy imparting knowledge, I am probably reading an impeccable piece of some classic literature or partying with my gang. 

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