[ uh-fekt ]
/ əˈfɛkt /
verb (used with object)
to give the appearance of; pretend or feign: to affect knowledge of the situation.
to assume artificially, pretentiously, or for effect: to affect a Southern accent.
to use, wear, or adopt by preference; choose; prefer: the peculiar costume he affected.
to assume the character or attitude of: to affect the freethinker.
(of things) to tend toward habitually or naturally: a substance that affects colloidal form.
(of animals and plants) to occupy or inhabit; live in or on: Lions affect Africa. Moss affects the northern slopes.
- to have affection for; fancy.
- to aim at; aspire to.
verb (used without object)
Obsolete. to incline, tend, or favor (usually followed by to): He affects to the old ways.
Words nearby affect
Origin of affect2
SYNONYMS FOR affect
1 See pretend.
OTHER WORDS FROM affectaf·fect·er, noun
usage note for affect
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for affecters (1 of 2)
verb (əˈfɛkt) (tr)
to act upon or influence, esp in an adverse waydamp affected the sparking plugs
to move or disturb emotionally or mentallyher death affected him greatly
(of pain, disease, etc) to attack
noun (ˈæfɛkt, əˈfɛkt)
psychol the emotion associated with an idea or set of ideasSee also affection
Word Origin for affect
C17: from Latin affectus, past participle of afficere to act upon, from ad- to + facere to do
British Dictionary definitions for affecters (2 of 2)
/ (əˈfɛkt) /
verb (mainly tr)
to put on an appearance or show of; make a pretence ofto affect ignorance
to imitate or assume, esp pretentiouslyto affect an accent
to have or use by preferenceshe always affects funereal clothing
to adopt the character, manner, etc, ofhe was always affecting the politician
(of plants or animals) to live or grow inpenguins affect an arctic climate
to incline naturally or habitually towardsfalling drops of liquid affect roundness
Word Origin for affect
C15: from Latin affectāre to strive after, pretend to have; related to afficere to affect 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
Medical definitions for affecters
[ ə-fĕkt′ ]
To have an influence on or affect a change in.
To attack or infect, as a disease.
Feeling or emotion, especially as manifested by facial expression or body language.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.