the act of approving; approbation.

formal permission or sanction.

Philately . one of a group of selected stamps sent by a dealer to a prospective customer for examination and either purchase or return. ?

on approval, without obligation to buy unless satisfactory to the customer upon trial or examination and, otherwise

returnable

We ship merchandise on approval.

noun

disapproval , opposition , refusal , rejection , disfavor , dislike , hatred

noun

acquiescence , assent , bells , blessing , compliance , concurrence , confirmation , consent , countenance , endorsement , go-ahead * , green light * , leave , license , mandate , okay , permission , ratification , recommendation , sanction , support , the nod , validation , acclaim , admiration , applause , appreciation , approbation , commendation , esteem , favor , liking , pat on the back , pat on the head , pr , praise , puff , pumping up , regard , respect , strokes , stroking , wow * , allowance , authorization , permit , affirmation , acclamation , accolade , accreditation , bravissimo , bravo , cachet , imprimatur , indorsement , kudos , plaudit , seal , subscription , unanimity