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surplus; margin; leeway; room; space; time; allowance; flexibility; scope
composure; placidity; complacency; calm
時間に余裕があるので、ゆっくり歩きましょう。
We have plenty of time, so let's walk slowly.
試験前でも余裕の表情を見せた。
Showed a calm expression even before the exam.
お金に余裕がなくて、旅行できません。
I don't have enough money, so I can't travel.