flat

adverb

field area in gridiron football
having a surface without significant curvature or inclination

L333678 on Wikidata ↗

adjective

even, uniform, extending mainly in two dimensions (often horizontal)
lacking fizz
lowered slightly in pitch
not shiny (as a surface)

L5061 on Wikidata ↗

noun

relatively level surface of land within a region of greater relief
apartment

L5062 on Wikidata ↗

Wiktionary

Pronunciation: /ˈflæt/ / [ˈflæt]

adj

Etymology: Etymology tree Proto-Germanic *flataz Old Norse flatrbor. Middle English flat English flat From Middle English flat, a borrowing from Old Norse flatr (compare Norwegian and Swedish flat, Danish flad), from Proto-Germanic *flataz, from Proto-Indo-European *pleth₂- (“flat”); akin to Saterland Frisian flot (“smooth”), German Flöz (“a geological layer”), Ancient Greek πλατύς (platús), Latvian plats, Sanskrit प्रथस् (prathas, “extension”). Doublet of plat and pleyt. The noun is from Middle English flat (“level piece of ground, flat edge of a weapon”), from the adjective. The algebraic sense was coined by Serre in a 1956 paper, originally as French plat.

Having no variations in height.
“The land around here is flat.”
Having no variations in height.
“a flat roof”
Having no variations in height.
“The surface of the mirror must be completely flat.”
“The carpet isn't properly flat in that corner.”
Having no variations in height.
“Near-synonym: flat-chested”
“That girl is completely flat on both sides.”
Without variation in level, quantity, value, tone etc.
“The exchange rate has been flat for several weeks.”
Without variation in level, quantity, value, tone etc.
“Sales have been flat all year, and we've barely broken even.”
Without variation in level, quantity, value, tone etc.
“a flat fee”
“flat rates”
Without variation in level, quantity, value, tone etc.
“He delivered the speech in a flat tone.”
Without variation in level, quantity, value, tone etc.
Without variation in level, quantity, value, tone etc.
“The walls were painted a flat gray.”
Lacking liveliness or action; depressed; uninteresting; dull and boring.
“The party was a bit flat.”
“The market is flat today as most traders are on holiday.”
Lacking liveliness or action; depressed; uninteresting; dull and boring.
“The author added a chapter to flesh out the book's flatter characters.”
Lowered by one semitone.
Of a note or voice, lower in pitch than it should be.
“Your A string is flat.”
Absolute; downright; peremptory.
“His claim was in flat contradiction to experimental results.”
“I'm not going to the party and that's flat.”
Deflated, especially because of a puncture.
With all or most of its carbon dioxide having come out of solution so that the drink no longer fizzes or contains any bubbles.
Lacking acidity without being sweet.
Unable to emit power; dead.
Without spin; spinless.
Sonant; vocal, as distinguished from a sharp (non-sonant) consonant.
Not having an inflectional ending or sign, such as a noun used as an adjective, or an adjective as an adverb, without the addition of a formative suffix; or an infinitive without the sign "to".
“Many flat adverbs, as in 'run fast', 'buy cheap', etc. are from Old English.”
Having a head at a very obtuse angle to the shaft.
Flattening at the ends.
Exact.
“He finished the race in a flat four minutes.”
Such that the tensor product preserves exact sequences. See Flat module on Wikipedia.Wikipedia.
Such that its target, regarded as a module over its source, is flat (as above).
Such that the induced map on every stalk is flat (as a map of rings).
Having little froth and little milk.
Foolish; simple-minded.
“We either burns the old brooms, or, if we can, we sells ’em for a ha’penny to some other boy, if he’s flat enough to buy ’em.”

adv

So as to be flat.
“Spread the tablecloth flat over the table.”
Completely, firmly, or unequivocally.
“I asked him if he wanted to marry me and he turned me down flat.”
“"You'll understand this flat, I won't be fooled about by you any longer."”
Exactly, precisely.
“In the mile race, Smith's time was 3:58.56, and Brown's was four minutes flat.”
“Dan Patch clocked a scorching 1:55.5 flat.”
Used to emphasize the smallness of the measurement.
“He can run a mile in four minutes flat.”
“Found my coat and grabbed my hat / Made the bus in seconds flat”
Without parole.
“The recent case in Dallas where two gay males were killed by an 18 yr old straight kid is a perfect example of what gays in this state face. The kid got 30 yrs (he'll do 3 or 4 yrs and be paroled) yet I must do 12 years flat for a robbery in which no one was hurt.”
Completely.
“I am flat broke this month.”
Directly; flatly.
“Sin is flat opposite to the Almighty.”
Without allowance for accrued interest.
“The bonds are trading flat.”

noun

Etymology: From an alteration (due to Scots flatt (“a level part of a structure”)) of Scots flet, flett (“inner part of a house”), from Middle English flet (“dwelling”), from Old English flet, flett (“ground floor, dwelling”), from Proto-West Germanic *flati, from Proto-Germanic *flatją (“floor”), from Proto-Germanic *flataz (“flat”), from Proto-Indo-European *pleth₂- (“flat”). Akin to Old Frisian flet, flette (“dwelling, house”). More at flet, flat₁.

A complete domicile occupying only part of a building, especially one for rent
“The excellence of French flats is so well known in America, that the owner will often refer to his property as "first class French flats."”
“A kiss may be grand but it won’t pay the rental on your humble flat or help you at the automat.”

verb

Etymology: From Middle English flatten, from Old French flatir (“to knock or strike down, dash”), from Frankish *flattjan (“to move the palm of the hand”), from Proto-Germanic *flatjaną (“to make flat, flatten”).

To beat or strike; pound
To dash or throw
To dash, rush