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distinction; difference; discrimination
separate; different; another; extra
exception; exclusion
classified by; ranked by; according to
「別」 has another reading with different meanings.
別に構いませんから大丈夫。
It doesn't matter to me, it's fine.
それはまた別の問題ですね。
That's a different matter.
男女別にグループを作った。
We made groups by gender.