I. noun — [ mass noun] 1. the action of approving something • the road schemes have been given approval
• [ count noun]
they have delayed the launch to await project approvals.
2. the belief that someone or something is good or acceptable • step-parents need to win a child’s approval.
II. phrases 1. on approval (of goods) supplied on condition that they may be returned if not satisfactory. • we would be happy to send you a selection on approval.
2. seal (or stamp) of approval an official statement or indication that something is accepted or regarded favourably. • the minister gave his seal of approval to the project.