Last Updated：2025/11/20

Someone who betrays, or reveals confidential information; a squealer or informer.

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betrayer

Source Word

betrayer

Someone who betrays, or reveals confidential information; a squealer or informer.

Japanese Meaning

裏切り者 / 内通者 / 暴露者

After the leaked documents surfaced, she was branded a betrayer by her colleagues.

機密文書が流出した後、彼女は同僚たちから裏切り者と呼ばれた。

Sense（1）

Someone who betrays, or reveals confidential information; a squealer or informer.

betrayers

（ plural ）