Pronunciation: (u-shoor', u-shûr'),[key] —v.t.,-sured, -sur•ing. 1. to declare earnestly to; inform or tell positively; state with confidence to: She assured us that everything would turn out all right. 2. to cause to know surely; reassure: He assured himself that no one was left on the bus. 3. to pledge or promise; give surety of; guarantee: He was assured a job in the spring. 4. to make (a future event) sure; ensure: This contract assures the company's profit this month. 5. to secure or confirm; render safe or stable: to assure a person's position. 6. to give confidence to; encourage.
7. Chiefly Brit.to insure, as against loss.