- 1known for sure; established beyond doubt
- 2particular but not named or specified
- 3having complete confidence in; sure
Using certain: Examples
Take a moment to familiarize yourself with how "certain" can be used in various situations through the following examples!
I am certain that I locked the door before leaving.
He has a certain charm that makes him popular.
She was certain of her decision to quit her job.
The book is about a certain man who travels the world.
certain Synonyms and Antonyms
Phrases with certain
a certain amount/number
an unspecified but definite amount or number
You need to add a certain amount of salt to the recipe.
I know for certain that she will be there.
I agree with you to a certain extent, but I still have some reservations.
Origins of certain
from Old French 'certein', from Latin 'certus', meaning 'sure, fixed'
Summary: certain in Brief
The term 'certain' [ˈsərt(ə)n] denotes knowledge that is established beyond doubt, as in 'I am certain that I locked the door before leaving.' It can also refer to something particular but not named, as in 'The book is about a certain man who travels the world.' 'Certain' extends into phrases like 'for certain,' indicating certainty without doubt, and 'to a certain extent,' implying partial agreement.