The crossword solutions for the term GIVES ONE'S WORD are ASSURES (7 letters) and VOWS (4 letters). Assures is a verb meaning to declare or affirm with confidence, often in a formal manner. It can also mean to make certain or sure of something. VOWS, on the other hand, is a noun that refers to a solemn promise or pledge, usually made in a religious or legal context. Both words imply a commitment to fulfill an obligation or promise.