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before; prior to; ago
the past; before; previously; former times
已前はここに大きな工場があったらしい。
Apparently there used to be a large factory here.
已前の経験を活かして新しい仕事に挑む。
I'm taking on a new job drawing on past experience.
已前よりも体力が落ちたと感じている。
I feel my stamina has declined compared to before.