Certainty

/ˈsɜːr.tən.ti/

Meaning & Definition

noun
the quality of being reliably true or, in some cases, the quality of being free from doubt.
She spoke with certainty about her decision to move to another city.
something that is certain; an assured fact.
The outcome of the event is a certainty due to the team's strong performance.
the state of being confident and free from doubt.
His certainty in his calculations led to a successful result.

Etymology

From Middle French 'certainté', from Latin 'certitudo'.

Common Phrases and Expressions

beyond a shadow of a doubt
Completely certain.
certainty of purpose
Having a clear and determined goal.
in all certainty
With complete assurance.

Related Words

certain
Free from doubt; known for sure.
uncertain
Not able to be relied on; not known or definite.
certify
To confirm formally as true or genuine.

Slang Meanings

Bet your bottom dollar
You can bet your bottom dollar I’ll be there!
For sure
That's for sure; I won’t forget your birthday.