Verbs

(v)opine, speak up, speak out, animadvert, sound offexpress one's opinion openly and without fear or hesitation“John spoke up at the meeting”
(v)sound off, strike upstart playing“The musicians struck up a tune”
(v)complain, kick, plain, sound off, quetch, kvetchexpress complaints, discontent, displeasure, or unhappiness“My mother complains all day”, “She has a lot to kick about”