1 SUFFIX (替换 -ism,构成可数名词和形容词）表示“…主义者”，“…信仰者”，“…主义的”，“信仰…的” -ist is used in place of -ism to form count nouns and adjectives. The nouns refer to people who have particular beliefs. The adjectives describe something related to or based on particular beliefs. (替换 -ism,构成可数名词和形容词）表示“…主义者”，“…信仰者”，“…主义的”，“信仰…的”

2 SUFFIX (用于构成可数名词)表示“…专业人员”，“…专家”，“从事…的人” -ist is used to form count nouns referring to people who do a particular kind of work. (用于构成可数名词)表示“…专业人员”，“…专家”，“从事…的人”

3 SUFFIX (用于表示乐器的名词后构成名词)表示“…演奏家”， “…演奏者” -ist is added to nouns referring to musical instruments, in order to form nouns that refer to people who play these instruments. (用于表示乐器的名词后构成名词)表示“…演奏家”， “…演奏者”