Definition of Certain in English :

Define Certain in English

Certain meaning in English

Meaning of Certain in English

Pronunciation of Certain in English

Certain pronunciation in English

Pronounce Certain in English


see synonyms of certain


1. certain

definite but not specified or identified

Example Sentences:
'set aside a certain sum each week'
'to a certain degree'
'certain breeds do not make good pets'
'certain members have not paid their dues'
'a certain popular teacher'
'a certain Mrs. Jones'

2. certain, sure

having or feeling no doubt or uncertainty; confident and assured

Example Sentences:
'felt certain of success'
'was sure (or certain) she had seen it'
'was very sure in his beliefs'
'sure of her friends'

3. certain

established beyond doubt or question; definitely known

Example Sentences:
'what is certain is that every effect must have a cause'
'it is certain that they were on the bus'
'his fate is certain'
'the date for the invasion is certain'

4. certain, sure

certain to occur; destined or inevitable

Example Sentences:
'he was certain to fail'
'his fate is certain'
'In this life nothing is certain but death and taxes'
'he faced certain death'
'sudden but sure regret'
'he is sure to win'

5. certain, sealed

established irrevocably

Example Sentences:
'his fate is sealed'

6. certain, sure

reliable in operation or effect

Example Sentences:
'a quick and certain remedy'
'a sure way to distinguish the two'
'wood dust is a sure sign of termites'

7. certain, sure

exercising or taking care great enough to bring assurance

Example Sentences:
'be certain to disconnect the iron when you are through'
'be sure to lock the doors'

WordNet Lexical Database for English. Princeton University. 2010.


see synonyms of certain
1. (postpositive)
positive and confident about the truth of something; convinced
I am certain that he wrote a book
2. (usually postpositive)
definitely known
it is certain that they were on the bus
3. (usually postpositive)
sure; bound; destined
he was certain to fail
decided or settled upon; fixed
the date is already certain for the invasion
unfailing; reliable
his judgment is certain
moderate or minimum
to a certain extent
7.  make certain of
8.  for certain
known but not specified or named
certain people may doubt this
(as pronoun; functioning as plural)
certain of the members have not paid their subscriptions
named but not known
he had written to a certain Mrs Smith

Collins English Dictionary. Copyright © HarperCollins Publishers


see synonyms of certain
fixed, settled, or determined
sure (to happen, etc.); inevitable
not to be doubted; unquestionable
certain evidence
not failing; reliable; dependable
a certain cure
controlled; unerring
his certain aim
without any doubt; assured; sure; positive
certain of his innocence
not named or described, though definite and perhaps known
a certain person
some, but not very much; appreciable
to a certain extent
9.  [with pl. v.]
a certain indefinite number; certain ones (of)
certain of these authors are seldom read

Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.


see synonyms of certain
1. Definite; fixed: set aside a certain sum each week.
2. Sure to come or happen; inevitable: certain success.
3. Established beyond doubt or question; indisputable: What is certain is that every effect must have a cause.
4. Capable of being relied on; dependable: a quick and certain remedy.
5. Having or showing confidence; assured: I'm certain I left my keys in this room.
a. Not specified or identified but assumed to be known: felt that certain breeds did not make good pets.
b. Named but not known or previously mentioned: a certain Ms. Johnson.
7. Perceptible; noticeable: a certain charm; a certain air of mystery.
8. Not great; calculable: to a certain degree; a certain delay in the schedule.
An indefinite but limited number; some: Certain of the products are faulty.

The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.