Definitions
1.NounSomeone who classifies.
2.NounA 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.NounA machine that separates particles or objects of different size or density.
4.NounA program or algorithm that classifies.
5.NounA metaclass used to group other entities having common features.