CERTAINTY meaning: 1. the state of being completely confident or having no doubt about something: 2. something that…. Learn more.

Dec 5, 2016 · The meaning of CERTAINTY is something that is certain. How to use certainty in a sentence. Synonym Discussion of Certainty.

Certainty is the state of being definite or of having no doubts at all about something. I have told them with absolute certainty there'll be no change of policy.

CERTAINTY definition: the state of being certain. See examples of certainty used in a sentence.

Definition of certainty noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Certainty bet one’s boots To be absolutely sure or certain of something. The reference is to a gambler (perhaps a cowboy, whose boots are among his most important possessions) so sure …

Dec 21, 2025 · certainty (countable and uncountable, plural certainties) She spoke with complete certainty. There is no certainty that the plan will succeed.

There are eight meanings listed in OED's entry for the noun certainty, two of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

CERTAINTY meaning: 1 : the state of being or feeling certain about something; 2 : something that is certain a fact about which there is no doubt

A certainty is a sure thing, something we know is true or will happen without any doubt. Here's a certainty: one plus one is two. And here's another: the earth orbits the sun. The noun certainty …