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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
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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
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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