(US) A day when one is permitted to not attend work in order to go on a vacation or attend to other matters.

(grammar) verb intransitive or intransitive verb (often appears in dual language dictionaries)

(aviation) The airspeed at which an aircraft leaves the runway on takeoff.

(automotive, engineering) Alternative form of V-twin

(aviation) The speed by which a pilot must have decided whether to continue a takeoff or to abort.

All or nothing, all in, for broke; riskily putting everything on the line to either win it all or lose it all.

(chemistry) Distillation under reduced pressure, and thus at a reduced temperature with less risk of thermal degradation

(biology) Free to move about.

(obsolete) To fade; to vanish.

plural of vacuum pump