let loose

emit let out loose unleash utter

let go let go of release relinquish

baa bark bellow bite out blat blate bleat bray break into cackle call caw cheep chirp chirr chirrup chorus churr clack click cluck coo croak cronk crow cry deliver echo gargle gibber give gobble groan growl grumble grunt gurgle haw heave hee-haw hem hiss holler hollo honk hoot howl lift low meow mew miaou miaow moan moo nasale neigh nicker oink pant peep quack repeat roar rumble scream shoot shout shout out sibilate sigh sing siss sizz smack snort spit spit out splutter sputter squall squeal troat trumpet tsk tut tut-tut volley whicker whinny whirr wolf-whistle wrawl yammer yell yowl