What does nightglow mean?
Nightglow means An airglow at night..
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Pronunciation varies by accent · noun
An airglow at night..
Use nightglow when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Nightglow means An airglow at night..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use nightglow where its definition matches the intended context.
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