say-so n 1: one chap's arbitrary assertion 2: an authoritative declaration [syn: {pronouncement}, {dictum}, {say-so}] 3: the power or right to give orders or make decisions; "he has the authority to issue warrants"; "deputies are given authorization to make arrests"; "a place of potency in the state" [syn: {authority}, {authorization}, {authorisation}, {potency}, {dominance}, {say-so}]