Keen, Kick, Kicking, Lilt, March, Mumble, Murmur, Murmuring, Mutter, Object, Objection, Pant, Peep, Peevishness, Petulance, Picket, Picketing, Pip, Pipe, Protest, Protestation, Quack, Qualm, Querulousness, Rally, Remonstrance, Remonstrate, Remonstration, Roar, Roll, Rumble, Scold, Scolding, Scream, Screech, Scruple, Shout, Shriek, Shrill, Sigh, Sing, Skirl, Snap, Snarl, Sniping, Snort, Sob, Squall, Squeak, Squeal, Strike, Thunder, Trill, Trumpet, Twang, Tweet, Twit, Twitter, Wail, Warble, Whine, Whining, Whisper, Whistle, Whoop, Yap, Yapping, Yawl, Yell, Yelp, Yip, Yowl, Bark, Bawl, Beef, Bellow, Bitch, Bitching, Blare, Blat, Blubber, Boggle, Boom, Boycott, Bray, Breathe, Buzz, Cackle, Call, Carol, Caterwaul, Caw, Challenge, Chant, Chatter, Cheep, Cheer, Chirp, Chuck, Cluck, Complain, Complaining, Complaint, Compunction, Coo, Crab, Creak, Croak, Crow, Cry, Cuckoo, Demonstrate, Demonstration, Demur, Dispute, Dissent, Drawl, Drum, Exception, Exclaim, Expostulate, Expostulation, Flute, Fret, Fuss, Gabble, Gaggle, Gasp, Gobble, Grievance, Gripe, Griping, Groan, Groaning, Grouch, Grouse, Growl, Grumble, Grumbling, Grunt, Hail, Hiss, Holler, Honk, Hoot, Howl