Nearby words

  1. acrylic fibre,
  2. acrylic resin,
  3. acrylonitrile,
  4. acrylyl,
  5. acrylyl group,
  6. act call,
  7. act curtain,
  8. act of contrition,
  9. act of faith,
  10. act of god

Idioms

Origin of act

1350–1400; Middle English act(e) (< Middle French) < Latin ācta, plural of āctum something done, noun use of past participle of agere to do (āg- past participle stem + -tum neuter past participle suffix); and directly < Latin āctus a doing (āg- + -tus suffix of v. action)

SYNONYMS FOR act
1. feat, exploit; achievement; transaction; accomplishment. See action. 4. record. 6. turn, routine. 10–13. perform, function, work. play. 19, 21 play.

Related forms
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for act upon

ACT

1

abbreviation for

Australian Capital Territory
(formerly in Britain) advance corporation tax

ACT

2
/ (ækt) /

n acronym for

(in New Zealand) Association of Consumers and Taxpayers: a small political party of the right

act

/ (ækt) /

noun

verb

See also act on, act out, act up

Derived Formsactable, adjectiveactability, noun

Word Origin for act

C14: from Latin actus a doing, performance, and actum a thing done, from the past participle of agere to do

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

Word Origin and History for act upon
Online Etymology Dictionary, © 2010 Douglas Harper

Idioms and Phrases with act upon

act upon

see act on.

act

In addition to the idioms beginning with act

  • act of faith
  • act of God
  • act on
  • act one's age
  • act out
  • act up
  • act upon

also see:

  • catch in the act
  • clean up (one's act)
  • do a disappearing act
  • get in the act
  • get one's act together
  • hard (tough) act to follow
  • high-wire act
  • in the act of
  • put on an act
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.