The meaning of OVERLAP is to extend over or past and cover a part of. How to use overlap in a sentence.

overlapping adjective (SAME SPACE) Add to word list covering something partly by going over its edge, or covering part of the same space:

If you have two pieces of something, and one is covering a part of another, then they're overlapping.

ˈoʊvɚˌlæp/ v., -lapped, -lap•ping, n. v. to stretch over and cover a part of (something else): [~ + object] Each piece of tile overlaps the next one. [no object] The pieces of tile overlap.

OVERLAP definition: to lap over (something else or each other); extend over and cover a part of; imbricate. See examples of overlap used in a sentence.

This is an urgent matter of our national security, uncomfortably overlapping with our politics.