1. 不重要的;不严重的；次要的
    You use minor when you want to describe something that is less important, serious, or significant than other things in a group or situation.

    e.g. She is known in Italy for a number of minor roles in films...
           她因在电影中饰演了一些配角而在意大利为人所知。
    e.g. Western officials say the problem is minor, and should be quickly overcome.
           西方官员称这个问题并不严重，应该很快就会解决。

2. (疾病)不严重的，轻微的;(手术)小的
    A minor illness or operation is not likely to be dangerous to someone's life or health.

    e.g. Sarah had been plagued continually by a series of minor illnesses...
           萨拉一直小病缠身。
    e.g. His mother had to go to the hospital for minor surgery.
           他母亲得去医院做一个小手术。

3. 小音阶的;小调的
    In European music, a minor scale is one in which the third note is three semitones higher than the first.

    e.g. ...the unfinished sonata movement in F minor.
           未完成的F小调奏鸣曲乐章

4. 未成年人(在英国和美国多数州指未满18岁的人，在法律上仍然视为儿童)
    A minor is a person who is still legally a child. In Britain and most states in the United States, people are minors until they reach the age of eighteen.

    e.g. The approach has virtually ended cigarette sales to minors.
           这个方法实际上杜绝了向未成年人出售香烟的现象。

5. (美国大学学科中的)辅修科目，辅修课程
    At a university or college in the United States, a student's minor is a subject that they are studying in addition to their main subject, or major.

minor的近义词

6. (美国大学中的)辅修生
    At a university or college in the United States, if a student is, for example, a geology minor, they are studying geology as well as their main subject.

7. 辅修
    If a student at a university or college in the United States minors in a particular subject, they study it in addition to their main subject.

    e.g. I'm minoring in computer science.
           我辅修计算机科学。