Real Dictionary

overhang
countable noun: An overhang is the part of something that sticks out over and above something else.
verb: If one thing overhangs another, it sticks out over and above it.

overhang in American English
the projection of one thing over or beyond another
to hang or project over or beyond
to hang over; project or jut out over something
intransitive verb: to hang over; project or jut out over something below
noun: something that extends or juts out over; projection
transitive verb: to hang or be suspended over

overhang in British English
noun: a formation, object, part of a structure, etc, that extends beyond or hangs over something, such as an outcrop of rock overhanging a mountain face
verb: to project or extend beyond (a surface, building, etc)