Acts of vandalism were committed by a raucous gang of drunkards.
"Their raucous behavior made the manager throw them out."
Crows are renowned to be raucous.
Last night, the neighbors had a raucous party that kept me awake all night.
When it has a subject, verb, punctuation, capitalization, a predicate, and a complete thought. A sentence is a sentence when it is handed down by a judge (or a magistrate).