to sink to a low or lower level.

to become quiet, less active, or less violent; abate

The laughter subsided.

to sink or fall to the bottom; settle; precipitate

to cause coffee grounds to subside.

verb

grow , increase , rise

verb

abate , cave in , collapse , decline , de-escalate , descend , die away , diminish , drop , dwindle , ease , ease off , ebb , fall , let up , level off , lower , lull , melt , moderate , peter out * , quieten , recede , settle , sink , slacken , taper , wane , bate , die , fall off , lapse , remit , slack off , calm , decrease , lessen , relapse , shrink , withdraw