(1):
(v. t.) To regard as good; to commend; to be pleased with; to think well of; as, we approve the measured of the administration.
(2):
(v. t.) To make or show to be worthy of approbation or acceptance.
(3):
(v. t.) To make profit of; to convert to one's own profit; - said esp. of waste or common land appropriated by the lord of the manor.
(4):
(v. t.) To show to be real or true; to prove.
(5):
(v. t.) To sanction officially; to ratify; to confirm; as, to approve the decision of a court-martial.
(6):
(v. t.) To make proof of; to demonstrate; to prove or show practically.