Dictionary

1certain

adjective cer·tain \ˈsər-tən\

: not having any doubt about something : convinced or sure

—used with it to say that something is known to be true or correct

—used to refer to something or someone that is not named specifically

Full Definition of CERTAIN

1
:  fixed, settled <a certain percentage of the profit>
2
:  of a specific but unspecified character, quantity, or degree <the house has a certain charm>
3
a :  dependable, reliable <a certain remedy for the disease>
b :  known or proved to be true :  indisputable <it is certain that we exist>
4
a :  inevitable <the certain advance of age>
b :  incapable of failing :  destined —used with a following infinitive <she is certain to do well>
5
:  assured in mind or action <I am certain they are right>
for certain
:  as a certainty :  assuredly <the cause is not known for certain>
of a certain age
:  of a somewhat advanced age :  no longer young <remembered by people of a certain age>

Examples of CERTAIN

  1. I'm fairly certain that I'll be on time.
  2. <a certain person told me that today is your birthday>

Origin of CERTAIN

Middle English, from Anglo-French, from Vulgar Latin *certanus, from Latin certus, from past participle of cernere to sift, discern, decide; akin to Greek krinein to separate, decide, judge, Old Irish criathar sieve
First Known Use: 13th century

Synonym Discussion of CERTAIN

sure, certain, positive, cocksure mean having no doubt or uncertainty. sure usually stresses the subjective or intuitive feeling of assurance <felt sure that I had forgotten something>. certain may apply to a basing of a conclusion or conviction on definite grounds or indubitable evidence <police are certain about the cause of the fire>. positive intensifies sureness or certainty and may imply opinionated conviction or forceful expression of it <I'm positive that's the person I saw>. cocksure implies presumptuous or careless positiveness <you're always so cocksure about everything>.

Rhymes with CERTAIN

2certain

pronoun, plural in construction

Definition of CERTAIN

:  certain ones

First Known Use of CERTAIN

15th century

Rhymes with CERTAIN

CERTAIN Defined for Kids

1certain

adjective cer·tain \ˈsər-tən\

Definition of CERTAIN for Kids

1
:  without any doubt :  sure <Are you certain you saw her?>
2
:  known to be true <It's certain that they were here.>
3
:  known but not named <A certain person told me.>
4
:  being fixed or settled <a certain percentage of the profit>
5
:  bound by the way things are <Our plan is certain to succeed.>
6
:  sure to have an effect <a certain cure>

2certain

pronoun

Definition of CERTAIN for Kids

:  known ones that are not named <Certain of the students could work harder.>

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3 ENTRIES FOUND:
Next Word in the Dictionary: certainlyPrevious Word in the Dictionary: certAll Words Near: certain
July 06, 2015
categorical Hear it
absolute or relating to a category
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