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Rule "missing hyphen in 'built in'"

This is one of many errors that LanguageTool can detect.

Description: missing hyphen in 'built in'
Message: A hyphen is missing in the adjective <suggestion>\1-\2</suggestion>.
Category: Grammar (ID: GRAMMAR)
Link: https://languagetool.org/insights/post/hyphen/#compound-adjectives-with-hyphens
Incorrect sentences
that this rule can detect:
  • The iPhone has a built in camera.
    Correction suggestion: built-in
  • The built in motion sensor.
    Correction suggestion: built-in
ID: BUILT_IN_HYPHEN [1]
Version: 6.6-SNAPSHOT (2024-11-24 22:33:09 +0100)