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Glite Dictionary
keyway

keyway

1 7.2
A long narrow slot in a part that fits a metal bar to lock or align parts
  • noun
  • /ˈkiːweɪ/
  • Specialized
: ranura
  • We've got strap keyways above and below.

Examples

  • To prevent slippage, it is important that the keyway is accurately cut into the metal component.

  • Say farewell to key and keyway.

    Academic text (2004)

  • No keyways or set screws are needed.

    Academic text (1996)

  • Any locksmith worth his salt can look at that picture, name the keyway, and punch out an exact duplicate with a key clipper.

    Blog text (32)

  • They can be modified with keyways or journal ends for bearing mounts.

    Academic text (2002)

  • The mechanic explained that the keyway allows the gear to be securely attached to the motor shaft.

  • The designer included a precise keyway in the part to ensure it aligns perfectly with the lock mechanism.

Surface Forms

keyway singular
keyways plural

Morphology

keyway = key + way (transparent) = key + way

The compound elements 'key' (the metal key used in machinery) + 'way' (path/channel) straightforwardly yield 'a channel for a key'; the technical sense is specialized but composition is clear.

Etymology

The word keyway is simply key + way, with way meaning a 'path' or 'slot'. So a keyway is a groove or slot where a key fits to lock, line up, or connect parts.