noun
first time; first round; first inning
Refers to the first occurrence, installment, or round of a series, event, or game. Often used in sports, broadcasts, and serialized content.
See also: 第一回
初回の授業で自己紹介をした。
We introduced ourselves in the first class.
初回から点を取られた。
They scored in the first inning.
noun which may take the genitive case particle 'no'
Used adjectivally with の to modify a noun, meaning 'first' or 'initial' in a sequence.
See also: 第一回
初回のミーティングで方針を決めた。
We decided the policy at the initial meeting.