certain

[ sur-tn ]
/ ˈsɜr tn /

adjective

pronoun

certain ones: Certain of the members declined the invitation.

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Idioms for certain

    for certain, without a doubt; surely: I know for certain that I have seen that face before.

Origin of certain

1250–1300; Middle English < Old French < Vulgar Latin *certānus, equivalent to Latin cert(us) sure, settled (cer- base of cernere to decide, + -tus past participle suffix) + -ānus -an

SYNONYMS FOR certain

1 convinced, satisfied. See sure.
4 indubitable, incontestable, irrefutable, incontrovertible, obvious, plain, clear.
5 determined.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for certain

British Dictionary definitions for certain

certain
/ (ˈsɜːtən) /

adjective

adverb

for certain definitely; without a doubthe will win for certain

determiner

  1. known but not specified or namedcertain people may doubt this
  2. (as pronoun; functioning as plural)certain of the members have not paid their subscriptions
named but not knownhe had written to a certain Mrs Smith

Word Origin for certain

C13: from Old French, from Latin certus sure, fixed, from cernere to discern, decide
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 certain

certain

see for certain.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.