paying cash-in-hand; paying under the table
vacuum; absolute void; complete vacuity
deterioration (in quality, performance, etc.); degradation; worsening; (visible) aging; becoming unattractive (due to aging)
to show off; to make a display (e.g. of wealth)
death by suffocation; death by choking
suffocation; choking; asphyxia
to have (an injury, person, etc.) looked at (by a doctor); to take (someone) to a doctor
decompression sickness; the bends
pressure; pressure (e.g. political); arm-twisting
fall; decline; lowering; deterioration; degradation
within the blood; blood-borne
gas; vapour; vapor; gaseous body
water pressure; hydraulic pressure
surfacing; rising to the surface; emerging; leaping into prominence; rising (of rank)
usual; ordinary; normal; regular; general; common
not exceeding ...; not more than ...; below (a standard, level, etc.); under; the following; the below-mentioned
one breath; chug!; drink!
to apply (of a rule); to be applicable (of standards, lessons, ideas, etc.); to hold true (e.g. of a description); to fit; to be suitable (e.g. of a word); to meet (requirements)
to hold in one's mouth; to bring with; to take along
detection (of a plot, fraud, etc.); discovery; coming to light; being uncovered
subjective symptoms; patient's complaints
appropriate; suitable; fitting; apt; proper; right
hyperbaric oxygen therapy; HBOT
demolition; taking down; dissolution (of an organization, company, etc.); breaking up; dissection (of a body); dismemberment
belief; faith; adherence; espousal
to shake; to swing; to sway; to shock
foundation; root; basis; root and trunk
science fiction; sci-fi; SF
boiling; seething; becoming heated (e.g. of a debate); excitement; soaring (of prices); shooting up
battle formation; camp; encampment; group; gang; war
integrity; consistency; conformity; compliance
space alien; alien; extraterrestrial being
leap; jump; stepping out into the wider world; becoming active on a wider stage; rapid progress; dramatic development
as one would expect; just as you'd expect (from); just like (someone)
earthling; earthman; terrestrial; citizen of Earth
deadly serious; deadly earnest