Meaning

2 senses
  1. An opener, typically with both can opener and bottle opener features, having a triangular tip that pierces the can.

    can opener that has a triangular pointed end that pierces the tops of cans

  2. Used other than figuratively or idiomatically: see church, key.

Origin

See Wikipedia at church key § Etymology.

See Wikipedia at church key § Etymology.

Wiktionary, CC BY-SA 4.0 · source

Forms

plural: church keys

See also

neighbours in the dictionary
church key — meaning, examples, forms, synonyms | Krumeto