What

What do we mean by what?

Which thing or which particular one of many. pronoun

Which kind, character, or designation. pronoun

One of how much value or significance. pronoun

That which; the thing that. pronoun

Whatever thing that. pronoun

Something. pronoun

Which, who, or that. pronoun

Which one or ones of several or many. adjective

Whatever. adjective

How great; how astonishing. adjective

How much; in what respect; how. adverb

That. conjunction

Used to express surprise, incredulity, or other strong and sudden excitement. interjection

Used as a tag question, often to solicit agreement. interjection

(or what) Used as an intensive at the end of a question. idiom

(what for) A scolding or strong reprimand. idiom

(what for) For what reason; why. idiom

(what have you) What remains and need not be mentioned. idiom

(Singlish) Used to contradict an underlying assumption held by the interlocutor.

A country I've never heard of. Urban Dictionary

Word that has been whored out beyond belief. Often when ever you go into a large room and scream it, you'll be responded to by many "OKAY!"s by many people trying desperately to sound like Lil' John. Urban Dictionary

If you what too many times Samuel L Jackson will shoot you Urban Dictionary

A general response to anything stupid, preferably written in lower case Urban Dictionary

Something you say when someone has said something retarded or fucked up, and you need them to realize what they said is so stupid they need to repeat it so you can be sure that they have just said something that idiotic. accompained by furrowed brow, bobbing head and neck, and a very pronounced, "Wh-utt?" Urban Dictionary

In hop-hop, it's often used as a sort of taunt after a proclamation has been made. Urban Dictionary

A response to anything being said to you, when you just don't want to listen, and/or just don't care what is being said to you. Urban Dictionary

You say this when you need more information. Urban Dictionary

When someone says something and you don't understand Urban Dictionary

One of the several hidden hats in the english language. The w-hat has counter-parts which include the t-hat, and the c-hat to name a few. Not to be confused with the prodigal dunce hat. Causes confusion and chaotic cognitive dissonance in medicated and/or crazy people. Urban Dictionary

Words that are spelled similarly to what:
what.

Words that are triggered by (strongly associated with) the word what:
happened, happening, happens, happen, termed, expect, doing, want, really, wants, perceived, say, you, think, know, done, calls, wrong, now.

Words that rhyme with what:
cut, that, nut, but, butt, shut, gut, undercut, strut, abut, rut, smut, glut, robot, haute, chestnut, slut, hut, rebut, somewhat, walnut, donut, mutt, shortcut, tut, peanut, doughnut, scuttlebutt, coconut, haircut, jut, sprit, netiquette, putt, hazelnut, uncut, clearcut, tutt, turbot, all but, phut, knut, scrit, groundnut, wing nut, qubit, kut, gutt, skutt, hutt, betel nut, monkey nut, nutt, horse chestnut, macadamia nut, brazil nut, crew cut, rutt, water butt, dutt, water chestnut, pine nut, nissen hut, scutt, jump cut, chesnut, fingerhut, chesnutt, green smut, hickory nut, pistachio nut, cashew nut, schutt, stinking smut, black walnut, cola nut, pay cut, mcnutt, schutte, english walnut, jelly doughnut, blind gut, false smut, queensland nut, ivory nut, satin walnut, boil smut, chinese chestnut, american chestnut, apple nut, sweet chestnut, taxcut, wackenhut, white walnut, american sweet chestnut, liver chestnut, chinese water chestnut, rifle butt, rush nut, cigarette butt.

Adjectives that are often used to describe what:
say, part, page, guess, contents, look, introduction, preface, know, how, parti, one, three, relative, forty, net, death, prudence, blank, believe, introductory, 26-1, perfect, conclusions, 22-1, heaven, metropolis, foreword, feel, color, summary, god, knows, date, 28-1, ill, interdependent, want, epilogue, consider, executive, tolerable, not, above, preview, pack, 1-1, vietnam, four, then, ouvrard, blue, religion, print, cleopatra, neutrality, president, have, six, resignation.

Nouns that are often described by the adjective what:
kind, does, happens, causes, next, kinds, means, type, makes, sort, factors, happened, types, things, manner, are, constitutes, became, role, works, matters, changes, others, becomes, needs, then, else, they, now, color, counts, goes, parents, difference, questions, remains, came, wear, really, good, teachers, comes, books, this, advice, circumstances, services, skills, lies, was, future, students, has, acts, business, read, symptom, costs, strategies, influences, tests, drives, teacher, god.

Consonant match to what:
white, whet, wit, weight, wet, wait, whit, wheat, wight, watt, wat, witt, wert, waite, whoot, whitt, whyte, wirt, witte, wayt, waitt, whate.

Words that sound like what:
what, wut, whatt, wet, wit, whit, witt, whet, whitt, witte, wett, webt, wette, weht, white, wait, weight, wheat, wat, watt, wight, weat, waite, wot, woot, wite, weet, waht, wayt, whyte, whoot, wote, yte, wud, weit, ouat, wott, waat, w00t, wiet, waught, woat, wyte, watte, yut, yatt, wed, wid, wedd, wead, widd, hut, haute, hutt, whut, hutte, was, wood, weed, wide, would, wade, wad, wyatt, weighed, whats, wort, wast, wod, wowed, wooed, wnt, wert, wush, wode, wayd, wirt, wied, woad, waid, wayde, wyat, weede, wundt, whas, wayed, waide, wyd, wiid, wadd, waaa, waad, waud, wlt, whad, wust, wiot, -wide, ouid, wiut.