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Definitions

effect

[ih-fekt] / ɪˈfɛkt /
NOUN
result
Synonyms
STRONGEST
aftermath consequence development event fallout issue outcome ramification reaction repercussion response side effect
STRONG
aftereffect backlash backwash conclusion corollary denouement end eventuality flak follow-up fruit outgrowth precipitate pursuance reflex sequel sequence spin-off upshot waves
WEAK
can of worms causatum chain reaction end product
Antonyms
STRONGEST
beginning cause origin question source
STRONG
commencement start
WEAK
foundation
NOUN
impact, impression
Synonyms
STRONGEST
action fact force influence meaning power reality sense significance strength use
STRONG
clout drift efficacy efficiency enforcement essence execution implementation import imprint mark purport purpose tenor validity vigor weight
Antonyms
STRONGEST
impotence incapacity incompetence powerlessness weakness
STRONG
disregard failure inefficiency neglect unimportance
WEAK
beginning cause commencement foundation origin source start
VERB
carry out, accomplish
Synonyms
STRONGEST
achieve bring about enact enforce implement realize
STRONG
actualize actuate begin buy cause complete conceive conclude consummate create effectuate execute follow through fulfill generate induce initiate invoke make perform procure produce render secure sell unzip yield
WEAK
bring off bring on carry through do a number do one's thing do the job do the trick do to a T draw on get across get to give rise to make it make waves pull it off put across turn out turn the trick
Antonyms
STRONGEST
fail halt hinder lose neglect stop
STRONG
close deny destroy disallow discourage end finish forget give up ignore miss prevent refuse ruin veto
WEAK
overlook

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It was not yet clear whether the rise in energy prices would have an immediate effect on the price of fish, Bruce said.

From Barron's • Apr. 5, 2026

The alerts are in effect from March 27 through May 6, and haven’t previously been reported.

From The Wall Street Journal • Apr. 5, 2026

The defence ministry official said that a similar provision was "in effect during the Cold War and had no practical relevance".

From BBC • Apr. 4, 2026

As a star grows larger, this effect becomes stronger.

From Science Daily • Apr. 4, 2026

On March 3, 1807, Thomas Jefferson signed into law Congress’s ban on the importation of slaves, to take effect January 1, 1808.

From "In the Shadow of Liberty" by Kenneth C. Davis

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.