roar

[1]	bellow , thunder , howl , bawl , squall , cry , yell , yowl , bay , snarl , growl
[2]	laugh , guffaw , howl (with laughter) , hoot
[3]	howl
[4]	thunder
[5]	howl , ululate , wail , yawl , yaup
[6]	bellow
[7]	howl

[1]	boom , roaring , thunder
[2]	bellow , bellowing , holla , holler , hollering , hollo , holloa , roaring , yowl
[3]	roaring , bellow , thunder , rumble , boom , howl , bawl , squall , cry , yell , yowl , clamour , outcry , snarl , snarling , growl , growling
[4]	guffaw , outburst , howl , hoot