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Pronunciation varies by accent · noun
(science fiction) An artificial megastructure in space, consisting of a rotating ring encircling a star and having an inhabitable inner surface with gravity produced through centripetal force..
Use ringworld when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Ringworld means (science fiction) An artificial megastructure in space, consisting of a rotating ring encircling a star and having an inhabitable inner surface with gravity produced through centripetal force..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use ringworld where its definition matches the intended context.
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