n.
1.the position of a prominent or well-known object in a particular landscape
2.an event marking a unique or important historical change of course or one on which important developments depend
3.a mark showing the boundary of a piece of land
4.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
Idiom of the Day
not breathe a word about (someone or something)
to keep a secret about someone or something, to not say anything about someone or something
I promised my friend that I would not breathe a word about his plans for the weekend.