THESAURUS
say the word
OK, accord, admit, allow, bid, call on, call the signals, call upon, charge, command, commission, consent, declare, decree, dictate, direct, dispense, enjoin, give an order, give leave, give permission, give the go-ahead, give the word, grant, instruct, issue a command, issue a writ, leave, let, make possible, mandate, okay, ordain, order, order about, permit, proclaim, promulgate, pronounce, release, rule, vouchsafe