noun
a laborer who works on a construction site or in excavation projects, typically performing heavy physical work
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The navvy worked diligently to dig the trench for the new water pipe.
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The navvy is always covered in dirt after a long day of construction work.
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Hey, that navvy over there is a hard worker, always getting the job done.
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She's a real navvy when it comes to tackling tough projects at work.