人们 is a plural noun meaning 'people' — specifically, a general, unspecified group of human beings. It is formed by adding the plural suffix 们 (men) to the singular noun 人 (rén, 'person'). Unlike English, Chinese nouns are not inherently marked for number; 们 is one of the few plural markers and is used only with animate nouns referring to people (e.g., 孩子们, 老师们), never with objects, animals, or abstract concepts. Importantly, 们 cannot be used after numerals or demonstratives — you cannot say *三个人们 or *这些人们 — instead, use people + measure word (e.g., 一些人, 许多人) or context to imply plurality.

This term carries a neutral, collective, and often somewhat formal or literary tone. It’s common in written Chinese, news reports, and generalizations (e.g., 'People everywhere enjoy music'), but less frequent in casual speech where speakers prefer alternatives like 大家 or 他们. It does not indicate gender, age, or status — it simply denotes 'people' as a broad social category.