The crossword solution for the term WARRANT WITH 'TO' is ATTEST. ATTEST is a verb meaning TO certify or confirm something as true, often through written evidence. It is commonly used in legal contexts, such as when a witness attests TO the truth of a statement in a court of law. In this context, a WARRANT is an official document that authorizes a person TO take certain actions, and TO ATTEST TO a WARRANT is TO provide evidence that it is valid and legally binding.