noun
a plant of the pea family with small purple, pink, or white flowers, cultivated for fodder and green manure
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The farmer planted vetch as a cover crop to improve the soil's fertility.
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I saw some vetch growing wild by the roadside.
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Let's go check out that field of vetch over there.
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Her mind was like a tangled mess of vetch, with thoughts weaving in and out unpredictably.