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遠慮， えんりょ
1. reserve, constraint, restraint, modesty, diffidence, hesitation, holding back, discretion, tact, thoughtfulness
2. declining, refraining
3. forethought, foresight
体恤他人，言行谨慎自持；委婉表达拒绝之意
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ない， 無い
1. nonexistent, not being (there)
2. unowned, not had, unpossessed
3. unique
4. not, impossible, won't happen
5. not
6. to not be, to have not
tbd
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使う， 遣う， つかう
1. to use (a tool, method, etc.), to make use of, to put to use
2. to use (a person, animal, puppet, etc.), to employ, to handle, to manage, to manipulate
3. to use (time, money, etc.), to spend, to consume
4. to use (language), to speak
使用（工具、方法等），利用，使处于可用状态；用(时间)，花(钱)，花费，消耗，耗费；使用（某人、某动物、木偶等），雇佣，处理，管理，掌控；使用（语言），说话
