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

Etymology

Origin of bottle cap

An Americanism dating back to 1925–30

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

After Porkchop swam off, several aquarium staffers gathered trash from the river, including roughly 20 golf balls, a Volkswagen car emblem, cut-up credit card, teal plastic line, a bottle cap.

From Los Angeles Times ● Feb. 27, 2026

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

And although they did not say they were happy to see us again, they gave us a bottle cap filled with olive oil.

From "Tasting the Sky" by Ibtisam Barakat