- 1[countable, uncountable] overlap (between something and something) a shared area of interest, knowledge, responsibility, etc. There is (a) considerable overlap between the two subjects.
- 2[countable, uncountable] the amount by which one thing covers another thing an overlap of 5 inches on each roof tile
- 3[singular] a period of time in which two events or activities happen together There will be an overlap of a week while John teaches Anne the job.
Check pronunciation: overlap