Published
Do you know what pneumonoultramicroscopicsilicovolcanoconiosis means? Well, this guy does!
Michael Bryan, 16, used the word at a Youth Select Committee meeting in July, when talking about money spent on mental health.
According to the Oxford English Dictionary, pneumonoultramicroscopicsilicovolcanoconiosis is "an invented long word said to mean a lung disease caused by inhaling very fine ash and sand dust".
Want to use a fancy word like this to impress your friends and family? Newsround has got you covered...
Image source, Getty Images
Word: Sesquipedalian
Means: Loving of long words
Pronounced: Sess-kwi-peh-day-leean
Sentence to use it in: As someone who is quite sesquipedalian, I make it my mission to use loads of long words in all my conversations.
Image source, Getty Images
Word: Hippopotomonstrosesquipedaliophobic
Means: Someone with a fear of long words
Pronounced: Hippoh-poh-toh-mon-stroh-sess-kwi-ped-ah-lee-oh-foe-bik
Sentence to use it in: Any hippopotomonstrosesquipedaliophobics are going to really hate me with my new vocabulary.
Image source, Getty Images
Word: Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch
Means: It is the name of a Welsh village and is the longest place name in the UK!
Pronounced: Llan-vire-pooll-gwin-gill-goh-gare-uh-win-drorb-ooll-llanty-sillyoh-gohgohgoh
Sentence to use it in: Fancy a trip to Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch this summer?
Image source, Getty Images
Word: Floccinaucinihilipilification
Means: The act of deciding that something is worthless. This is one of the longest words in the English language, so any sesquipedalian would be wise to know this one.
Pronounced: flok-sih-naw-kinih-hillih-pillih-fik-ay-shun
Sentence to use it in: I am very offended by my friend's floccinaucinihilipilification of my amazing new vocabulary.
Image source, Getty Images
Word: Facetiously
Means: If you do something facetiously, you are deliberately treating something that is perhaps quite serious with inappropriate jokes or humour. It's a great word because it has every single vowel - and the semi-vowel 'y' - just once!
Pronounced: fah-see-shush-lee
Sentence to use it in: You should never behave facetiously when it comes to important and serious matters such as the use of fancy words.
Word: Antidisestablishmentarianism
Means: This originally meant when people were against the removal of the Church of England's status, but now it can be used to refer to a movement against the government taking away their support for a particular church or religion.
Pronounced: anti-dis-est-ab-lish-men-tare-rian-ism
Sentence to use it in: Did you know that antidisestablishmentarianism was left out of the 10th edition of the Concise Oxford Dictionary by mistake? No, but you do now.
Image source, Getty Images
Word: Quintessential
Means: The perfect example of something
Pronounced: Kwin-teh-sen-shul
Sentence to use it in: I am a quintessential sesquipedalian.
Word: Boondoggle
Means: Work that you do just so that you look busy, but it isn't actually useful.
Pronounced: As it looks - this one's not too tricky to pronounce!
Sentence to use it in: You might think my mission to learn more long words is a complete boondoggle, but it's actually extremely interesting.
Image source, Getty Images
Word: Circumlocution
Means: The use of lots of words where fewer words would actually do the job.
Pronounced: Sir-cum-loh-cue-shun
Sentence to use it in: My love of circumlocution means you may think my sentences are unnecessarily long - but I would disagree.
Image source, Getty Images
Word: Gasconade
Means: To extravagantly boast
Pronounced: Gas-con-ayde
Sentence to use it in: I don't like to gasconade, but my vocabulary after reading this article is quite exceptional.
Image source, Getty Images
Word: Brobdingnagian
Means: Huge or gigantic. It has a capital letter as the word comes from the name of a land in Gulliver's Travels where everything is enormous.
Pronounced: Brob-ding-nag-ian
Sentence to use it in: I have a vocabulary of Brobdingnagian proportions!
Image source, Getty Images
Word: Lateritious
Means: All this word means is brick-red in colour... But it's a much funnier way of saying it!
Pronounced: Lat-er-rih-shush
Sentence to use it in: I am a huge fan of your lateritious T-shirt.
Image source, Getty Images
Word: Discombobulate
Means: To confuse (someone)
Pronounced: Dis-com-bob-bew-late
Sentence to use it in: Do you want to learn some more long words too or are you too discombobulated after reading this article?
Strange, Stranger, Strangest
Published
24 November 2017
Watch Newsround
Published
10 June 2018