precipitous; rugged; inaccessible; grim; severe; stern
space; air; midair; (from) memory; (by) heart
a few seconds; several seconds
second (unit of time); arc second
before long; soon; almost; nearly; finally; in the end
suspicious; doubtful; dubious; questionable; fishy
horizontal (as opposed to vertical); side-to-side (as opposed to front-to-back); width; side (of a box, etc.); beside; aside
such a stupid ...; what a crazy ...; no way!; what nonsense!; how can that be?
strange; odd; peculiar; queer; curious
last; final; closing; last train (bus, flight, etc.; of the day)
examination; exam; test; trial; experiment; test
speech; tongue; dialect; brogue; bento; Japanese box lunch; petal
very likely; very probable
to rub; to scrub; to repeatedly reuse (a joke, a topic of conversation, etc.); to milk; to mash (a button); to spam (a move)
funny; amusing; strange; odd; wrong; unsuitable
to perceive; to sense; to take in; to grasp; to feel
actually; really; truly; in practice; practically
suddenly; abruptly; unexpectedly
towards (a destination); for the purpose of; with the goal of; targeting (a group, a demographic)
concrete; definite; specific; material; substantial
feeling; sense; impression
having a headache; racking one's brains; troubling over something
tinnitus; ringing in the ears
painful; difficult; distressing; (psychologically) difficult; straitened (circumstances); tight (financial situation)
choking; suffocating; stifling; oppressive; heavy
heart; guts; nerve; heart (of something); central part
suddenly; at once; considerably; very much; firmly; with an effort
narrow; tight; formal; stiff; constrained; uncomfortable
to confide; to reveal; to disclose; to lay bare; to speak frankly; to open (one's heart)
to be based on; to take into account; to build upon; to have one's feet firmly planted on; to plant oneself on
practitioner (of medicine, sorcery, fortune telling, etc.)
ultrasonic waves; ultrasound
transmission of a sonar pulse; pinging
to stretch around (e.g. a fence, dragnet, etc.); to lay out (e.g. a wiring system, network, etc.); to string up (e.g. an antenna, ship's rigging, etc.)
extraction; abstraction; selection (from a group); sampling
consent; agreement; acceptance; understanding; satisfaction (e.g. with an explanation); being convinced
to sit; to squat; to be implicated
to lead; to take the lead (in doing something); to precede; to go before; to die before (esp. one's spouse, parents, etc.); to be a prerequisite
bright white (esp. for snow and ice); brilliant white
to repaint; to paint again; to paint (a different colour); to change completely; to break (a record); to redraw (e.g. the map)