classifier

中文： 量词

1. Someone who classifies.
2. A word or morpheme used in some languages (such as CJKV languages and sign languages), in certain contexts (such as counting), to indicate the semantic class to which something belongs.
3. A machine that separates particles or objects of different size or density.
4. A program or algorithm that classifies.
5. A metaclass used to group other entities having common features.

复数 classifiers