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/ˈsuːpəɹɡʌn/ · noun
A very large cannon with an extremely high muzzle velocity and large bore..
Use supergun when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Supergun means A very large cannon with an extremely high muzzle velocity and large bore..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use supergun where its definition matches the intended context.
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