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Pronunciation varies by accent · noun
A battleship of a class more powerful than the earlier dreadnoughts..
Use superdreadnought when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Superdreadnought means A battleship of a class more powerful than the earlier dreadnoughts..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use superdreadnought where its definition matches the intended context.
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