Samples of onomatopoeia

Crackle

Pop

Clunk

Bomb

Sizzle

Hiss

Plop

Pop

Kerplunk

Splash

Also: buzz, beep, whirr, click, clack, clatter, clink, achoo, bark, nay, moo, meow, shhhh.

*Onomatopoeia is a Word that comes from the natural sound it is describing.)