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