crux : Idioms & Phrases
crux australis
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noun a small conspicuous constellation in the southern hemisphere in the Milky Way near Centaurus
Crux; Southern Cross.
WordNet
crux of the matter
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noun the most important point
crux.
WordNet
hypericum crux andrae
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noun shrubby plant having yellow to apricot flowers with four petals arranged in a cross; southeastern United States: New York to Texas
St Andrews's cross.
WordNet
las cruces
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noun a town in southern New Mexico on the Rio Grande