Longest Words in English Quiz


By: Staff

4 Min Quiz

Image: refer to hsw

About This Quiz

These words will curl your corneas and tie up your tongue. How much do you know about the longest English words?

How many letters are in the longest English word that you'll see in a normal dictionary?

There are longer words, but people argue about whether they count if they don't appear in a dictionary that most people would use.


What is this word we mentioned in the previous question?

Pneumonoultramicroscopicsilicovolcanoconiosis is 45 letters long and refers to a lung disease.


If you declare yourself antitransubstantiationalist, you may find yourself at odds with who?

It means you don't believe that the bread and wine offered during communion are actually the blood and flesh of Christ.


What causes pneumonoultramicroscopicsilicovolcanoconiosis?

It's a lung disease caused by inhaling fine silica particles from dust or volcanic ash.


What is "methylchloroisothiazolinone"?

It has antibacterial and antifungal characteristics, but it also causes allergic reactions in some people


What's the meaning of "antidisestablishmentarianism"?

If you turn away from an established church, you might be labeled with this word.


In which movie did the word "supercalifragilisticexpialidocious" appear?

Poppins even goes so far as to sing the word backwards.


How many letters are in "antidisestablishmentarianism"?

Compared to some others in our list, it's a baby.


What did the Guinness Book of World records have to say about "incomprehensibilities"?

It is 21 letters long.


What does "floccinauccinihilipilification" mean?

It refers to something that doesn't have much value.


What is "anhydrohydroxyprogesterone"?

It can be administered orally to combat progesterone deficiency.


About how long did it take one man to pronounce the name of the largest protein?

It took 3.5 hours. But people debate whether this a real word or just a chemical construction.


How many letters are there in the word that took over three hours to properly pronounce?

It has 189,819 letters. There's a YouTube video of a man speaking the word, and yes, it's boring.


What's special about the word "abstentious"?

It means "one who abstains from excess."


Para-Dimethylaminobenzaldehyde is a chemical that might be used to test what?

It can be used to detect byproducts made by bacteria in the intestines.


What sort of creature is "parastratiosphecomyia sphecomyioides"?

It's a soldier fly that typically lives less than a week.


How many letters are there in "supercalifragilisticexpialidocious"?

It's a nonsense word but it might be used to describe something that's exciting or good.


To what does "hippopotomonstrosesquipedalian" refer?

And at 30 letters, it is very appropriate for our quiz


How is "ethylenediaminetetraacetic" abbreviated?

This 26-letter word refers to a type of salt that's very useful in medicine.


"Hepaticocholangiocholecystenterostomies" refers to what?

It refers to a surgically created connection between a hepatic duct and the gall bladder.


If you suffer from "pseudopseudohypoparathyroidism", you may not have enough of what mineral in your body?

The condition is very rare and only affects about seven people in 1 million.


Dichlorodiphenyltrichloroethane is very damaging to what kind of wildlife?

Popularly known as DDT, it thins eggshells and can cause bird populations to nosedive.


How many letters are there in "dichlorodiphenyltrichloroethane"?

It's a pesticide and it was banned in 1972, an act that helped bald eagles recover in numbers.


Which writer used the word "honorificabilitudinitatibus"?

He used the laborious word in a play called "Love's Labour's Lost"


How many letters are there in "pseudopseudohypoparathyroidism"?

If you have it, it means you have a hormonal disorder.


What does "honorificabilitudinitatibus" mean?

Its 27 letters are also an homage to lengthiness.


What does "aequeosalinocalcalinoceraceoaluminoscupreovitriolic" describe?

This one is extremely long but you won't find it in a consumer dictionary.


How many letters are in "aequeosalinocalcalinoceraceoaluminoscupreovitriolic"?

Because this one is a medical term, it might be thrown out in a longest-word contest.


What's the meaning of "asseocarnisanguineoviscericartilaginonervomedullary"?

It's an informal (but very long) word for the human body.


How many letters are there in "asseocarnisanguineoviscericartilaginonervomedullary"?

If it appeared in a regular dictionary it would be the longest English word.


Explore More Quizzes

About HowStuffWorks Play

How much do you know about dinosaurs? What is an octane rating? And how do you use a proper noun? Lucky for you, HowStuffWorks Play is here to help. Our award-winning website offers reliable, easy-to-understand explanations about how the world works. From fun quizzes that bring joy to your day, to compelling photography and fascinating lists, HowStuffWorks Play offers something for everyone. Sometimes we explain how stuff works, other times, we ask you, but we’re always exploring in the name of fun! Because learning is fun, so stick with us!