space; air; midair; (from) memory; (by) heart
to float; to be suspended; to rise to the surface; to appear; to come to mind; to have inspiration
degenerate; pervert; deviant
if I'm forced to say something; if anything; if I must say; if I must choose
unveiling; debut; introduction
feather; plume; wing; shuttlecock (in badminton)
to name; to call; to christen; to term
ignition; catching fire; setting on fire
memories; recollections; reminiscence
school; school building; schoolhouse
once and for all; completely; spotlessly
order; sequence; procedure
each and every one of them; every last one of them; all a bunch of
opening performance; opening act; curtain raiser; minor performer; minor storyteller; subordinate part
to keep company; to look after; to entertain; to play (a game) with
being painfully-true (e.g. reprimand); making one's ears burn; striking home (e.g. remark); having an earache; feeling pain in one's ear
swiftly; rapidly; suddenly; abruptly; sharply (of a slope, bend, etc.); steeply
to grow weak; to become weak; to lose strength
to devour; to bite to death
to say; to spatter; to prate; to prattle; to babble
to master (a skill); proprietor; manager; leader; chief; master (of arts, science, etc.); master (recording)
failure; defective article; dead loss; good-for-nothing; worthless person; flop
state; condition; circumstances; sight; spectacle
laboratory testing bench; laboratory table; subject of an experiment; (human) guinea pig
chance; start; cue; excuse; motive; impetus
whether or not (in phrases like "I don't know whether or not I can come")
death; mortality; to die; to pass away
action; operation; effect; function
to drive mad; to make insane; to cause a malfunction; to put out of order; to derail (a plan, etc.)
fool; blockhead; idiot; dunce
scattering; diffusion; spread (e.g. signal across the spectrum)
to pass through; to pass by; to pass (of time); to elapse; to have expired; to have ended; to exceed
crowding together; clustering together; close formation; swarm
to expose (to the sun, public, danger, etc.); to bleach; to refine; to rinse (vegetables); to soak; to doxx
to loaf (particularly on the job); to idle one's time away; to dawdle
to give up on; to turn one's back (on); to abandon; to forsake; to dump (e.g. romantic partner)
heir; inheritor; successor
concentration; thickness; density; cardinality
centre; center; pivot; central nervous system