landmark
1. [ noun ] the position of a prominent or well-known object in a particular landscape
Examples:

"the church steeple provided a convenient landmark"

Related terms: position
2. [ noun ] an event marking a unique or important historical change of course or one on which important developments depend
Synonyms: turning_point watershed
Examples:

"the agreement was a watershed in the history of both nations"

Related terms: juncture road_to_Damascus Fall_of_Man
3. [ noun ] (anatomy,zoology) 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
Related terms: structure craniometric_point surgery
4. [ noun ] a mark showing the boundary of a piece of land
Related terms: reference_point merestone
Similar spelling:   landman
  Lundmark
  landmass