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switchblade

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noun switch·blade \-ˌblād\

Simple Definition of switchblade

  • : a knife that has a blade inside the handle which springs out when a button is pressed

Source: Merriam-Webster's Learner's Dictionary

Full Definition of switchblade

  1. :  a pocketknife having the blade spring-operated so that pressure on a release catch causes it to fly open —called also switchblade knife

1932

First Known Use of switchblade

1932



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