bottle cap

American  

noun

• bottle caps
  plural

1. a device for closing or sealing a bottle, especially a metal cover with a cork gasket fitting tightly over the mouth of a glass or plastic bottle, held in place by crimping the edge of the cap over the lip or flange of the bottle.

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Other Word Forms

Noun Inflected Forms

• bottle caps
  plural

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Etymology

Origin of bottle cap

An Americanism dating back to 1925–30

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Example Sentences

See Examples For:

bottle cap

There’s a predictable resistance of In my day we fished with a wooden stick and a bottle cap and caught fish the size of Buicks, etc.

From The Wall Street Journal ● Aug. 12, 2026

Mosquitoes can breed even in the small amount of water that collects in a bottle cap, and only need five to seven days to grow from egg to adult, Farned said.

From Los Angeles Times ● Sep. 30, 2024

He was armed with nothing but an oversized bottle cap on his back.

From Seattle Times ● Jun. 2, 2024

“During our experiments with tactile sensors,” he says, “we found that tasks like unstacking cups and opening a bottle cap were significantly harder—and perhaps more useful—than rotating objects.”

From Scientific American ● Jul. 31, 2023

We picked mangoes from the neighbor’s trees and traded them for lengths of wire, which we used to make axles and attach the bottle cap wheels.

From "The Boy Who Harnessed the Wind" by William Kamkwamba

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