assurance
noun
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”
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”
Synonymspledgea statement intended to inspire confidence
“the President's assurances were not respected”
a British term for some kinds of insurance
Source: WordNet 3.1, Princeton University
