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reserve; constraint; restraint; modesty; diffidence; hesitation; holding back; discretion; tact; thoughtfulness
declining; refraining
forethought; foresight
遠慮なく食べてください。
Please eat without hesitation.
会議への出席を遠慮させていただく。
I will respectfully decline to attend the meeting.
遠慮しないで何でも聞いて。
Feel free to ask anything.