Noun
1. freedom from doubt; belief in yourself and your abilities;
"his assurance in his superiority did not make him popular""after that failure he lost his confidence""she spoke with authority"2. a binding commitment to do or give or refrain from something;
"an assurance of help when needed""signed a pledge never to reveal the secret"3. a statement intended to inspire confidence;
"the President's assurances were not respected"4. a British term for some kinds of insurance