the.com/overlap
Where two things share turf without bothering to ask permission.
means The part where two things extend over and cover a portion of each other, in space, time, or idea.
from From over plus lap, the old verb meaning to fold or wrap; by the 1700s things began laying partly atop one another.
Math homeVenn diagrams exist to draw it.
Roof logicShingles overlap so rain stays out.
Schedule painTwo meetings overlapping means missing one.