subside

UK: /səbˈsaɪd/ US: /səbˈsaɪd/ ,(səb sīd′)

Inflections of 'subside' (v): (⇒ conjugate)

subsides

v 3rd person singular

subsiding

v pres p

subsided

v past

subsided

v past p

WordReference Random House Learner's Dictionary of American English © 2025

sub•side /səbˈsaɪd/   v. [no object] , -sid•ed, -sid•ing. 

1. to sink to a low or lower level:
   The water in the sink subsided slowly.
2. to become quiet, less active, or less violent:
   By dawn the storm had subsided.

sub•sid•ence /səbˈsaɪdəns, ˈsʌbsɪdəns/  n. [uncountable] See -sid-.

WordReference Random House Unabridged Dictionary of American English © 2025

sub•side  (səb sīd′), v.i., -sid•ed, -sid•ing. 

1. to sink to a low or lower level.
2. to become quiet, less active, or less violent; abate:
   The laughter subsided.
3. to sink or fall to the bottom;
   settle;
   precipitate:
   to cause coffee grounds to subside.

• Latin subsīdere, equivalent. to sub- sub- + sīdere to sit, settle; akin to sedēre to be seated; see sit¹
• 1640–50

sub•sid•ence  (səb sīd′ns, sub′si dns), n.  sub•sid′er, n. 
Synonyms

• 1. decline, descend, settle.
• 2. diminish, lessen, wane, ebb.

Antonyms

• 1. rise.
• 2. increase.

Collins Concise English Dictionary © HarperCollins Publishers::

subside / səbˈsaɪd/ verb (intransitive)

1. to become less loud, excited, violent, etc; abate
2. to sink or fall to a lower level
3. (of the surface of the earth, etc) to cave in; collapse
4. (of sediment, etc) to sink or descend to the bottom; settle

Etymology: 17th Century: from Latin subsīdere to settle down, from sub- down + sīdere to settle

subˈsider noun