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buttonhole noun

  /ˈbʌtənˌhoʊl/
  • A hole through which a button is pushed to secure a garment or some part of one.
  • (attributive) So shaped that it can be worn on a buttonhole or it is similar to a buttonhole.
  • (chiefly, British) A flower worn in a buttonhole for decoration.
boutonnière

buttonhole verb

  /ˈbʌtənˌhoʊl/
  • (transitive, colloquial) To detain (a person) in conversation against their will.
tenir la jambe
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