provide evidence for; stand as proof of; show by ones behavior, attitude, or external attributes; His high fever attested to his illness; The buildings in Rome manifest a high level of architectural sophistication; This decision demonstrates his sense of fairness

[ Syn: attest , manifest , demonstrate , evidence ]

guarantee payment on; of checks

authorize officially; I am licensed to practice law in this state

[ Syn: license , licence ]

guarantee as meeting a certain standard; certified grade AAA meat

[ Syn: endorse , indorse ]

declare legally insane