Individual can function as both a noun and an adjective in English.
As a noun, individual refers to:
1. A single human being as distinct from a group
2. A person of a particular kind (often used humorously)
3. In biology, a single organism as distinct from a species
As an adjective, individual means:
1. Relating to one particular person or thing
2. Designed for use by one person
3. Characteristic of a particular person or thing
哎呦喂，这个individual可真是个万金油词汇啊，既能当名词又能当形容词使。
当名词的时候，individual主要有这么几个意思：
1. 指"个人"，就是跟群体相对的那个"个体"嘛，比如说"每个individual都有自己的想法"
2. 有时候也指"某种类型的人"，带点儿调侃的味儿，比如"这哥们儿真是个奇怪的individual"
3. 在生物学里，表示"单个生物体"，跟整个物种区分开
当形容词用的时候，那意思就更丰富了：
1. "个别的"、"单独的"，比如说"individual case"就是"个别案例"
2. "个人的"、"供个人使用的"，像"individual room"就是"单人间"
3. "独特的"、"有特色的"，比如"individual style"就是"个人风格"
补充说明：这个词儿在口语里经常简写成"indie"或者"indiv"，年轻人用得可溜了。比如说"这事儿得看individual情况"，意思就是"这事儿得看具体情况"。