clack (n.)
- babble
- bicker
- blab
- blabber
- blather
- blether
- cackle
- call
- carol
- catcall
- caw
- chat
- chatter
- cheep
- chirp
- chirrup
- chuck
- clapper
- clatter
- click
- cluck
- cock-a-doodle-doo
- coo
- crack
- cracker
- cracking
- crackle
- crackling
- crepitation
- cricket
- croak
- crow
- cuckoo
- decrepitation
- dither
- drum
- firecracker
- gab
- gabble
- gaggle
- gas
- gibber
- gobble
- gossip
- guff
- gush
- haver
- honk
- hoo
- hoot
- horn
- jabber
- jaw
- noisemaker
- palaver
- patter
- peep
- pip
- pipe
- prate
- prattle
- quack
- quidnunc
- racket
- rattle
- rattlebox
- rattling
- roll
- ruckle
- rumormonger
- scandalmonger
- scold
- sieve
- sing
- siren
- snap
- snapper
- spit
- spitting
- spout
- squawk
- tabby
- talebearer
- telltale
- ticktack
- tittle-tattle
- trill
- twaddle
- tweet
- twit
- waffle
- warble
- whistle
- yak
clack (v.)
- babble
- bicker
- blab
- blabber
- blather
- blether
- brattle
- cackle
- call
- carol
- catcall
- caw
- chat
- chatter
- cheep
- chirk
- chirp
- chirr
- chirrup
- chitter
- chuck
- clatter
- click
- clitter
- cluck
- coo
- crack
- cracking
- crackle
- crepitate
- cricket
- croak
- cronk
- crow
- cuckoo
- decrepitate
- dither
- drum
- gab
- gabble
- gaggle
- gas
- gibber
- gobble
- gossip
- guggle
- gush
- honk
- hoo
- hoot
- horn
- jabber
- jaw
- natter
- palaver
- patter
- peep
- pip
- pipe
- prate
- prattle
- quack
- racket
- rattle
- roll
- ruckle
- scold
- shatter
- sieve
- sing
- snap
- spit
- spout
- squawk
- ticktack
- tittle-tattle
- trill
- twaddle
- tweet
- twit
- waffle
- warble
- whistle
- yak
