noun
A long stick with a crosspiece at the top, used as a support under the armpit by a lame person.
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The patient used a crutch to help support their weight while recovering from a leg injury.
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I saw him hobbling around on crutches after spraining his ankle.
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She's been leaning on her friends like a crutch ever since her breakup.
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His fear of failure had become a crutch, holding him back from taking risks.