To stop from making noise; make quiet or silent
To cause someone to become quiet.
In addition; besides:
To cause to sleep or rest; soothe or calm:
(Intransitive) To become calm.
Find another word for quieten. In this page you can discover 20 synonyms, antonyms, idiomatic expressions, and related words for quieten, like: hush, quiet, shush, shut up, silence, still, sounds, hush up, calm down, tranquilize and tranquillize.