noun
General noun meaning the inner part or interior of something. Antonym: アウトサイド.
Antonyms: アウトサイド
建物のインサイドはとても広かった。
The inside of the building was very spacious.
noun
inside corner
Baseball term for a pitch thrown on the inside part of the strike zone, close to the batter.
ピッチャーはインサイドを攻めた。
The pitcher attacked the inside corner.