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Some of The Longest Words in The English Language

  • Editor OGN Daily
  • 15 hours ago
  • 2 min read

Don't read this if you have hippopotomonstrosesquippedaliophobia - "fear of long words" -like this one, which has 35 letters.


Sign depicting the name of Mount Taumata - but using all 85 letters

45 Letters: The longest word entered in most standard English dictionaries is Pneumonoultramicroscopicsilicovolcanoconiosis with 45 letters and is defined by the Merriam Webster dictionary as "a lung disease caused by inhalation of very fine silicate or quartz dust."


189,819 Letters: That's not a typo. The longest string of letters used to describe something isn't technically a word - it's the chemical name for a protein, begins with methionylthreonylthreonylglutaminyl..., and continues for quite a while after that. In fact, it takes more than three hours to say. It's so long that it can fill 50 pages - hence the reason why OGN has only given you the first mouthful.


85 Letters: The longest place name in the English-speaking world (though not in the English language) is thought to be a 1,001-foot-high hill in New Zealand called Taumatawhakatangihangakoauauotamateaturipukakapikimaungahoronukupokaiwhenu-akitanatahu. It comes from the Maori language and has been translated as “the place where Tamatea, the man who had big knees, the climber of mountains, the slider, the land-swallower that traveled about, played the nose flute that he had to the loved ones.” Normally called Taumata for short.


28 to 34 Letters: There are some long words that are rarely or never used in a sentence, but instead are commonly used as examples of long words. The most famous of these are antidisestablishmentarianism (a position that advocates that a state church - the "established church" - should continue to receive government patronage, rather than be disestablished), which has 28 letters; and supercalifragilisticexpialidocious ("extraordinarily good"), which has 34 letters. Floccinaucinihilipilification (29 letters) ("the act or habit of assessing something as worthless").


23 to 27 Letters: The definitions of these words are long and technical so Mirriam Webster has kindly provided concise definitions for today's purposes. If you do something electroencephalographically (27 letters) you do it using an apparatus for recording brain waves - that is, an electroencephalograph. Radioimmunoelectrophoresis (26 letters) refers to a kind of immunoelectrophoresis involving radioactive labels. If you do something immunoelectrophoretically (25 letters) you do it with immunoelectrophoresis.

Laryngotracheobronchitis (24 letters) refers to inflammation of the larynx, trachea, and bronchi. Hydrochlorofluorocarbon (23 letters) refers to a type of gas also helpfully known as HCFC.


Then, obviously, you get down to words of 22 letters or less, which are rather more common place. Words such as counterrevolutionaries (22 letters) - people who participate in a revolution directed toward overthrowing a government or social system established by a previous revolution - and incomprehensibilities (21 letters) refers to things that are hard to comprehend or understand.


We’re pretty sure most of these words qualify.

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