set the seal on smth.

(oфициaльнo) oдoбpить чтo-л., дaть coглacиe нa чтo-л., caнкциoниpoвaть, пoдтвepдить чтo-л.

    When he had offered me a friendly hand, Mrs. Lew set the seal upon our meeting. 'You two young men ought to have much in common' (A. I. Cronin). Some day she knew life would set the seal of security on their love (D. Cusack)