clas·si·fi·er
noun/ˈklæsɪfaɪə(r)/
/ˈklæsɪfaɪər/
(grammar)- an affix or word that shows that a word belongs to a group of words with similar meanings. For example the prefix ‘un’ is a classifier that shows the word is negative.
分类成分，分类词（能显示同义所属关系，如前缀 un 是表示反义的分类成分）