# Overlap

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Look up in Wiktionary, the free dictionary.overlap |

**Overlap** may refer to:

- In set theory, an overlap of elements shared between sets is called an intersection, as in a Venn diagram.
- In music theory, overlap is a synonym for reinterpretation of a chord at the boundary of two musical phrases
- Overlap (railway signalling), the length of track beyond a stop signal that is proved to be clear of obstructions as a safety margin
- Overlap (road), a place where multiple road numbers overlap
- Overlap (term rewriting), in mathematics, computer science, and logic, a property of the reduction rules in term rewriting systems
- Overlap add, an efficient convolution method using FFT
- Overlap coefficient, a similarity measure between sets
- Orbital overlap, important concept in quantum mechanics describing a type of orbital interaction that affects bond strength

**Overlapping** can refer to:

- "Reaching over", term in Schenkerian theory, see Schenkerian analysis#Lines between voices, reaching over

disambiguation page lists articles associated with the title Overlap. If an internal link led you here, you may wish to change the link to point directly to the intended article. |
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