What does overlapping mean?
Overlapping describes a situation in which two or more things share some space, time, scope, or subject matter. The word is especially common when describing physical objects, as in overlapping windows, layers, circles, or pieces of paper, but it is also widely used for schedules, events, responsibilities, research topics, and other areas of life. Its usual implication is partial rather than exact coincidence: two plans may overlap without being identical, and two colors may overlap without fully covering one another. As the present participle of overlap, it can also appear in progressive constructions such as “The projects are overlapping.” Overlapping is a useful, accessible word because it captures the practical problems and creative possibilities of shared space or simultaneous activity. It can be neutral, as in overlapping layers, or mildly critical, as when it describes conflicting responsibilities or schedules.
Sharing some space, time, scope, or subject matter with another thing; partly extending over or coinciding with something else.
"The report contains overlapping sections that should be consolidated."
This is the dominant adjectival use and can describe both physical and abstract overlap.
The present participle of overlap, meaning to share some space, time, scope, or subject matter with something else.
"The two events are overlapping, so only one of them can be held in the main hall."
In this use, overlapping is used in a progressive or participial construction.
Overlapping is the word for when two things occupy the same space—or, less literally, the same moment.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does overlapping come from?
Overlapping is formed from the prefix over- and the word lap, an Old English noun referring to a fold, flap, or overlapping section. The compound meaning developed from the literal covering or intersection of folded or layered things and was later extended to shared time, scope, and subject matter. The root is also reflected in later words such as lapel, lappet, and laptop.
Related word forms
How overlapping is actually used
The word is common in both formal and informal contexts. It often suggests that the shared extent is partial rather than exact, though it can also describe complete coincidence. In schedules and project planning, overlapping usually implies that the same time or personnel is allocated to more than one activity.
Easily confused with overlapping
Overlapping means that two things share some space, time, or scope, whereas an overlay is a separate item placed on top of another to cover, display, or emphasize it.