2.AdjectiveOf two (or, rarely, more than two) things: the larger in size (bigger), in value, in importance etc.
"greater yellowlegs"
3.AdjectiveIn the names of places or geographic features:
The larger geographic or administrative area that encompasses or belongs to a place (especially if both share the same name).
"Greater Antilles; Greater London; Greater New York includes adjacent parts of three states, as well as the City itself.; Greater Armenia"
4.AdjectiveThe larger geographic or administrative area that encompasses or belongs to a place (especially if both share the same name).
"Greater Antilles"
5.AdjectiveIncluding the surrounding urban areas and conurbation (of a city or other large settlement).
"Greater London; Greater New York includes adjacent parts of three states, as well as the City itself."
6.AdjectiveReferring to a state at its fullest historical (or desired future) extent including colonies, annexed land, etc.