authorize, authorise, clear, pass - grant authorization or clearance for; "Clear the manuscript for publication"; "The rock star never authorized this slanderous biography"

sanction - give religious sanction to, such as through on oath; "sanctify the marriage"

visa - approve officially; "The list of speakers must be visaed"

back, endorse, indorse, plump for, plunk for, support - be behind; approve of; "He plumped for the Labor Party"; "I backed Kennedy in 1960"

confirm - as of a person to a position; "The Senate confirmed the President's candidate for Secretary of Defense"

judge - form an opinion of or pass judgment on; "I cannot judge some works of modern art"

rubberstamp - approve automatically