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Pronunciation varies by accent · noun
Coal that is intermediate between anthracite and semibituminous coal..
Use semianthracite when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Semianthracite means Coal that is intermediate between anthracite and semibituminous coal..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use semianthracite where its definition matches the intended context.
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