underlap
/ˈʌndərˌlæp/
verb
- To extend or lie partly under something, especially in a way that creates a gap or overlap.
- The technician adjusted the shingles so they underlap properly along the roof edge.
- In the design, the upper panel should underlap the lower one by two inches.
- The tiles underlap each other to prevent water from seeping through.
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noun
- A condition or area where one thing extends under another, often leaving a gap or insufficient coverage.
- There was a small underlap in the carpet where the two pieces met.
- Engineers measured the underlap between the two metal sheets to ensure a tight seal.
- The underlap in the roofing caused a leak during the storm.
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