akin

Compared meaning: connected or similar (adjective).

比较义项：有关联的／相似的（形容词）。

• related

  The most general term: says two things have a connection or relationship, without specifying blood ties; used for facts, events, illnesses, or topics as well as people.

  最通用的词：只表示两件事物有关联或有关系，不特指血缘关系；可用于事实、事件、疾病或话题，也可用于人。

  Diabetes and obesity are closely related, though not the same condition.

  糖尿病和肥胖症密切相关，但并不是同一种病。

• kin

  Means related specifically by blood or family; more formal and literary, and often used almost like a collective noun ('her kin') rather than a plain adjective.

  特指有血缘或家族关系；语气更正式、文学化，且常像集合名词一样使用（如 her kin），而不是普通形容词。

  All her kin gathered at the family reunion last weekend.

  上周末，她所有的亲属都在家庭聚会上团聚了。

• akin 本词

  Means similar in nature, quality, or origin rather than actually connected; always followed by 'to', and typically used for abstract things like feelings, styles, or ideas.

  指本质、性质或来源上相似，而非真正有关联；后面总跟 to，常用于抽象事物，如情感、风格或观念。

  His calm response was more akin to relief than actual joy.

  他平静的反应更像是如释重负，而不是真正的喜悦。

Related, kin, and akin all describe things that are connected or similar. Related is the most general word, simply showing a connection. Kin means related by blood or family, and is formal. Akin means similar, not truly connected, and is always followed by 'to'.

这三个词都表示事物之间有联系或相似之处，但联系的性质和语气不同：related 最通用，只说明有关联；kin 特指血缘或家族关系，语气正式、文学化；akin 强调性质上的相似而非真实的联系，且后面必须接 to。三者用法和搭配不同，容易被学习者混用。