sound of a button or switch being pressed
hailing each other; acting in concert; responding (to); agreement; concord
dull (e.g. a knife); blunt; thickheaded; obtuse; dull (sound, color, etc.); dim (light)
shock; tremor; impact; vibration
instant; moment; (split) second; (in a) flash; (in the) blink of an eye
usual; ordinary; normal; regular; general; common
to put back; to return; to vomit; to throw up; to recover (of a market price)
nature; natural; spontaneous; naturally; spontaneously
to extract; to pull out; to draw out; to headhunt; to lure away; to poach
empty; hollow; bare; vacant; deserted
to collapse; to crumble; to get out of shape; to lose one's shape; to break down; to be thrown into disarray; to crash (stock market)
unnatural; artificial; affected; strained
stiffening; rigidity; rigor; stiffness; ossification; petrification
to walk about; to walk around; to walk to and fro; to pace around; to wander
ripple (on water); wavelets; ripple (e.g. of uneasiness); unrest; disturbance
billow; surge; large wave
shaking; shake; unsettledness; instability; existence of multiple spellings, pronunciations, usages, etc. for a single word
contour; outline; summary; outline; looks; features
to become sodden; to swell up; to become lazy
to float; to rise to the surface; to stand out; to be visible; to be alienated
combination; union; binding; bond
expansion; swelling; increase; growth
armoring; armouring; armor; armour
inner part; inside; interior; depths (e.g. of a forest); back (of a house, drawer, etc.); bottom (e.g. of one's heart)
to groan; to moan; to roar; to howl; to hum (engine, wind, etc.); to buzz; to ooh and aah (in admiration)
stoppage; coming to a stop; ceasing (movement, activity, etc.); suspension (of operations); suspension (of payment, licence, etc.); (temporary) prohibition
interval; space; valley; gorge; loophole (in a wall); crenel
loose; lenient; lax; gentle (curve, slope, etc.); slow; weak; soft
(in the) neighbourhood; neighborhood; around; about; for instance; say
to pause; to have a short intermission
inner structure; internal anatomy
sorting; arrangement; liquidation; settlement; retrenchment; curtailment
to flow into; to pour into; to stream into
blank space (in documents); vacuum; blank; void
to be set up (completely); to be put together; to be composed (e.g. type)
board; plank; sheet (of metal); plate (of glass); cutting board; chopping board
to interlace; to fit together; to combine; to mingle
cover; mantle; shroud; hood
wood; lumber; (raw) material; stuff; talent; ability
in turns; in series; in number order; by rotation
to pile up; to stack; to load (car, ship, etc.); to pack; to acquire; to accumulate
weight; heavyweight boxer
to rub against; to chafe; to quarrel
birth; creation; formation
to decorate; to ornament; to display; to exhibit; to mark (e.g. the day with a victory); to adorn (e.g. the front page)