is a specific kind of: emit, let loose, let out, utter.

is a broader term that covers: hollo | hurrah | halloo | whoop | pipe, pipe up, shriek, shrill | howl, roar, ululate, wail, yaup, yawl | screak, screech, skreak, skreigh, squawk.

verb group: call | call out, cry, cry out, exclaim, outcry, shout.

see also: call out.

derivation: screamer | call, cry, outcry, shout, vociferation, yell | cry, yell | bellow, bellowing, holla, holler, hollering, hollo, holloa, roar, roaring, yowl | scream, screaming, screech, screeching, shriek, shrieking | shouting, yelling.

is a specific kind of: express, give tongue to, utter, verbalise, verbalize.

derivation: vociferator.