Overlap /(?)/

O·ver·lap

Overlap

v. t.
  1. To lay (one thing) over another; to lap.
  2. To cover part of.

Overlap

v. i.
  1. To be arranged so that a part of one object laying over part of another; as, the boards overlapped at their ends.
  2. To have the ending time of one period or process extend beyond the beginning time of another period or process; as, the lives of Theodore Roosevelt and Franklin Roosevelt overlapped by several decades.

Overlap

n.
  1. The lapping of one thing over another; as, an overlap of six inches; an overlap of a slate on a roof.
  2. An extension of geological beds above and beyond others, as in a conformable series of beds, when the upper beds extend over a wider space than the lower, either in one or in all directions. (Geol.)