| cockspur | (noun) small spiny West Indian tree | Synonyms: Pisonia aculeata |
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| (noun) widely grown stout Old World hay and pasture grass | Synonyms: cocksfoot, Dactylis glomerata, orchard grass |
| hotspur | (noun) a rash or impetuous person | - |
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| larkspur | (noun) any of numerous cultivated plants of the genus Delphinium | - |
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| sandspur | (noun) grass of the eastern United States and tropical America having spikelets enclosed in prickly burs | Synonyms: Cenchrus tribuloides, field sandbur, sandbur |
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| spur | (noun) a sharp prod fixed to a rider's heel and used to urge a horse onward | Synonyms: gad |
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| (noun) a railway line connected to a trunk line | Synonyms: branch line, spur track |
| (noun) a verbalization that encourages you to attempt something | Synonyms: goad, goading, prod, prodding, spurring, urging |
| (noun) tubular extension at the base of the corolla in some flowers | - |
| (noun) any sharply pointed projection | Synonyms: acantha, spine |