noun, noun which may take the genitive case particle 'no'
set; matching collection; uniform group
Refers to a group of items that are uniform, matching, or form a complete set. Often used with clothing, tableware, or coordinated objects.
この茶碗は揃いで買った。
I bought these teacups as a set.
揃いのTシャツを着て応援した。
We wore matching T-shirts to cheer.
noun, used as a suffix
Noun suffix used after numbers or quantity words, often voiced as ぞろい. Indicates that every item in a group shares a characteristic, or that a group consists entirely of something. Common in phrases like 兄弟ぞろい or 安物ぞろい.
うちは兄弟ぞろいで背が高い。
All the siblings in my family are tall.
この店は安物ぞろいだ。
This shop is full of cheap stuff.
Transitive verb meaning to arrange or make things uniform; 揃い is the resulting state or collection.
Intransitive verb meaning to become complete or uniform; 揃い is the noun form of this state.
Derived from the verb 揃う (そろう, 'to be complete, to be uniform'). The suffix use with rendaku (ぞろい) is a natural phonetic shift in compounds.