1. 缓和，缓解，减轻，解除(不愉快的情绪或形势)
    If something relieves an unpleasant feeling or situation, it makes it less unpleasant or causes it to disappear completely.

    e.g. Drugs can relieve much of the pain...
           药物能够大大地缓解病痛。
    e.g. This should save her from boredom and will also relieve the pressure on you to keep her entertained.
           这能使她不会感到厌倦，而且也会减轻你的压力，不必总想着逗她开心。

2. 使解脱;使摆脱
    If someone or something relieves you of an unpleasant feeling or difficult task, they take it from you.

    e.g. A part-time bookkeeper will relieve you of the burden of chasing unpaid invoices and paying bills.
           雇一个兼职会计将使你摆脱追讨未付单据和支付账单的负担。

3. 使（从…中）解脱出来
    If someone relieves you of something, they take it away from you.

    e.g. A porter relieved her of the three large cases.
           一个行李搬运工替她扛了3个大包。

4. 接替…的职位;代…的班
    If you relieve someone, you take their place and continue to do the job or duty that they have been doing.

    e.g. At seven o'clock the night nurse came in to relieve her.
           7点钟的时候夜班护士来接她的班。

5. 解除（或免除）…的职务
    If someone is relieved of their duties or is relieved of their post, they are told that they are no longer required to continue in their job.

    e.g. The officer involved was relieved of his duties because he had violated strict guidelines...
           那名相关的官员被免除了职务，因为他违反了要求严格的规章制度。
    e.g. The party leader has been relieved of his post.
           这个党的领导人被免除了职务。

6. 解围;解放
    If an army relieves a town or another place which has been surrounded by enemy forces, it frees it.

    e.g. The offensive began several days ago as an attempt to relieve the town.
           进攻于几天前开始，试图解放这个城镇。

7. 上厕所;排便
    If people or animals relieve themselves, they urinate or defecate.

relieve的近义词

    e.g. It is not difficult to train your dog to relieve itself on command.
           训练你的狗按指令大小便并非难事。