名词是词性的一种，也是实词的一种，是指待人、物、事、时、地、情感、概念等实体或抽象事物的词。名词可以独立成句。在短语或句子中通常可以用代词来替代。

1.一般能受数词与量词的修饰。
例：一个人，一本书

2.一般不受副词修饰（前面也不用｢不｣修饰）。
例：很智能，不智能

3.一般可以与介词组成介宾结搆(介宾短语不能作主语）。
例：在房间，在教室

4.句子中通常当作主语和宾语，也可作定语。
例：爸爸,，妈妈，老师，同学

A noun (from Latin nōmen, literally meaning "name") is a word that functions as the name of some specific thing or set of things, such as living creatures, objects, places, actions, qualities, states of existence, or ideas. Linguistically, a noun is a member of a large, open part of speech whose members can occur as the main word in the subject of a clause, the object of a verb, or the object of a preposition.