Idioms

Origin of flat

1
1275–1325; Middle English < Old Norse flatr, akin to Old English flet (see flat2), Greek platýs (see platy-, plate1

SYNONYMS FOR flat

1 plane. See level.
4 low, prone.
11 outright, peremptory, categorical.
14 boring, spiritless, prosaic.
17 vapid, unsavory.

Related forms

flat·ly, adverbflat·ness, nounun·flat·ted, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for fall flat (1 of 2)

See also flats

Derived Forms

flatly, adverbflatness, noun

Word Origin for flat

C14: from Old Norse flatr; related to Old High German flaz flat, Greek platus flat, broad

British Dictionary definitions for fall flat (2 of 2)

flat

2
/ (flæt) /

noun

a set of rooms comprising a residence entirely on one floor of a buildingUsual US and Canadian name: apartment
British and NZ a portion of a house used as separate living quarters
NZ a house shared with people who are not members of one's own family

verb flats, flatting or flatted (intr)

Australian and NZ to live in a flat (with someone)

Word Origin for flat

Old English flett floor, hall, house; related to flat 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Idioms and Phrases with fall flat (1 of 2)

fall flat


Fail, prove to be ineffective, as in His jokes nearly always fell flat—no one ever laughed at them. [First half of 1800s]

Idioms and Phrases with fall flat (2 of 2)

flat


In addition to the idioms beginning with flat

  • flat as a pancake
  • flat broke
  • flat on one's back
  • flat out

also see:

  • caught flat-footed
  • fall flat
  • in no time (nothing flat)
  • leave flat
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.