Allude to
Allude to, touch on/upon, hint at, raise, introduce, refer to, speak briefly of, bring up, broach, and moot.
State
State, let someone/anyone know, disclose, let out, intimate, put forward, present, tell, utter, breathe a word of, recommend, endorse, put in a good word for, puff, plug, say, declare, divulge, reveal, indicate, advance, propound, speak about/of, communicate, let on about, commend, advertise, speak well of, and hype (up).
Reference to
Reference to, comment on, statement, indication, allusion to, remark about, and announcement.
Tribute
Tribute, acknowledgement, honourable mention, recommendation, endorsement, citation, recognition, hat tip, commendation, and a good word.