alphabet soup noun
Learner's definition of ALPHABET SOUP
[noncount]
: a type of soup for children with small noodles that are shaped like letters of the alphabet字母汤（给小孩子喝的有字母形状面条的汤） —
often used figuratively to describe a confusing group of letters (such as abbreviations) that are used to refer to various organizations, items, etc.常用作比喻，指一堆令人费解的字母，如代表各种组织、货品等的缩略词