a cataclysm resulting from a destructive sea wave caused by an earthquake or volcanic eruption; "a colossal tsunami destroyed the Minoan civilization in minutes"
an anatomical structure used as a point of origin in locating other anatomical structures (as in surgery) or as point from which measurements can be taken
a mark showing the boundary of a piece of land
an event marking a unique or important historical change of course or one on which important developments depend; "the agreement was a watershed in the history of both nations"
the position of a prominent or well-known object in a particular landscape; "the church steeple provided a convenient landmark"
escape potentially unpleasant consequences; get away with a forbidden action; "She gets away with murder!"; "I couldn't get out from under these responsibilities"
cause to be acquitted; get off the hook; in a legal case; "The lawyer got him off, even though there was no doubt in everybody's mind that he killed his wife"
deliver verbally; "He got off the best line I've heard in a long time"