yammer (v.)
- babble
- bark
- bawl
- bellow
- call
- caterwaul
- chat
- chatter
- cheer
- clack
- creak
- cry
- gab
- gabble
- hail
- halloo
- holler
- hollo
- hoot
- howl
- hurrah
- jaw
- keen
- pipe
- prattle
- pule
- roar
- screak
- scream
- screech
- shout
- shriek
- shrill
- skirl
- skreigh
- squall
- squawk
- squeak
- squeal
- ululate
- wail
- whimper
- whine
- whistle
- whoop
- wrawl
- yak
- yap
- yawl
- yawp
- yell
- yelp
- yowl