What does blue-black mean?
Blue-black means A very dark blue..
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Pronunciation varies by accent · noun
A very dark blue..
Use blue-black when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Blue-black means A very dark blue..
Common synonyms include achromatic, colorless.
The opposite depends on the specific sense.
Use blue-black where its definition matches the intended context.
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