To be or become silent or still.
To interrupt one's course or journey for a brief visit or stay. Often used with by, in, or off:
To become quiet
To make or become loud or louder
Find another word for pipe-down. In this page you can discover 9 synonyms, antonyms, idiomatic expressions, and related words for pipe-down, like: become quiet, hush, speak lower, stop, quieten, quiet, quiesce, quiet-down and louden.