There's no single "least said" word, as usage varies, but extremely rare words like "oam" (warm, steamy air), "hoaming" (meaning unknown), or highly obscure terms like "flahoolick" (a type of clover), "fudgel" (pretending to work), or "nudiustertian" (the day before yesterday) are contenders, often appearing only in historical texts or specialized lists, while common words like "please" or "thank you" are actually used incredibly often, contrary to some online jokes.
Rarely Used Words
10 Less Common English Words
The word with 645 meanings is "run," according to the Oxford English Dictionary. This number refers specifically to the verb form, making it the most complex word in English, surpassing the former record-holder, "set". Its vast meanings range from physical movement to operating machines, managing businesses, and extending in a direction, a versatility that grew with societal changes like the Industrial Revolution.
Here are some examples of silent consonants:
This one will depend on how you pronounce the word fifth, which has two common pronunciations: one in which both F's are pronounced and one in which the second F is not (as if it were spelled “fith”). As far as we know, this silent F pronunciation of fifth is the only example in English of a word with a silent F.
Tricky words in English often involve confusing spellings, silent letters, or subtle meaning differences, with examples including homophones like there/their/they're, spelling challenges like accommodate (double letters) and rhythm (no vowels), and usage confusion such as imply vs. infer, bring vs. take, and sight words like was, are, and the that don't follow phonetic rules. These words can trip up both learners and native speakers due to pronunciation discrepancies or similar forms with distinct meanings.
Pneumonoultramicroscopicsilicovolcanoconiosis (45 letters) is significantly longer than hippopotomonstrosesquippedaliophobia (36 letters), with the former being the longest word in major dictionaries, describing a lung disease, while the latter ironically names the fear of long words.
methionylthreonylthreonylglutaminylarginyl… At over 180,000 letters long, the chemical name of the protein titin is often said to technically be the longest English word. If spoken out loud, this word takes over three hours to say!
What is 23 in words? 23 in words is written as "twenty-three". It is the standard English spelling used in maths, exams, and everyday writing to represent the number 23 in its word form.
18 Amazing English words we've totally forgotten about
What new Gen Z or Gen Alpha words did Cambridge add? Official additions include delulu, rizz, situationship, gyatt, and skibidi, plus expanded recognition of “-core” aesthetics.
Full list of words from this list:
The 15 most unusual words you'll ever find in English
“Eellogofusciouhipoppokunurious” is a 30-letter adjective that means “very good or fine.” It's one of the longest words in English. For example, “The chef's special dessert was nothing short of eellogofusciouhipoppokunurious—a truly delightful treat!”
10 Obsolete English Words
Most commonly, length is based on orthography (conventional spelling rules) and counting the number of written letters. Alternate, but less common, approaches include phonology (the spoken language) and the number of phonemes (sounds).
Yes, “supercalifragilisticexpialidocious “ is in all the major English dictionaries. It was originally a made-up word from “Mary Poppins,” but it has been adapted in English to mean extraordinarily good, wonderful.
Laryngotracheobronchitis (24 letters) refers to inflammation of the larynx, trachea, and bronchi. (Yikes.)
The longest chemical compound known to us till date is a 'Protein'.The chemical formula for the protein is C169723H270464N45688O52243S912.Scientists call the protein: Titin.
The extended term for “titin” has 189,819 letters, but the first 61 letters are methionylthreonylthreonylglutaminylarginyltyrosylglutamylsery. It takes three or more hours to pronounce the entire word. Titin is the body's largest known protein that maintains muscular passive elasticity.
Intralexical factors can also influence a lexical item's learning burden, including pronounceability, orthography, morphology, synformy, and semantic features (e.g., abstractness, register, idiomaticity, and polysemy; Laufer, 1997) .
The correct spelling of the number 40 is forty. In modern times, fourty is incorrect, although in the past this was likely the original spelling.