1. [ noun ] freedom from doubt; belief in yourself and your abilities
Synonyms: confidence self-confidence authority sureness self-assurance

"his assurance in his superiority did not make him popular" "after that failure he lost his confidence" "she spoke with authority"

Related terms: certainty certain uncertain
2. [ noun ] a statement intended to inspire confidence

"the President's assurances were not respected"

Related terms: statement clean_bill_of_health assure
3. [ noun ] a binding commitment to do or give or refrain from something
Synonyms: pledge

: "an assurance of help when needed" "signed a pledge never to reveal the secret"

Related terms: commitment oath guarantee guarantee plight vow pledge
4. [ noun ] (finance) a British term for some kinds of insurance
Related terms: insurance UK