はさんだ

interrupted, interjected, caught, trapped (between)

→ 挟む
verb · informal, past tense Rare #44,078
interrupted, interjected Often used in the phrase 口を挟む, meaning to interrupt or interject in a conversation.
JA: 彼は会話に口をはさんだ。
EN: He interrupted the conversation.
caught, trapped (between) Used when something gets caught between two things, as in a finger caught in a door.
JA: ドアに指をはさんだ。
EN: I caught my finger in the door.

「でも、私たちが造れば、買い手は現れるわ」とヨハンナが口をはさんだ。

“But if we build it, buyers will come,” Johanna interjected.

クラーク・レインソンが口をはさんだ。

Clark Reinerson chimed in.

友達の父親が私の指をドアにはさんだのピアノの試験に合格した日よ

It was the day my friend's father caught my finger in the door—the day I passed my piano exam.

— ふたりのベロニカ (1991)