What does light years mean?
Light years means plural of lightyear.
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Pronunciation varies by accent · noun
plural of lightyear.
Use light years when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Light years means plural of lightyear.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use light years where its definition matches the intended context.
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