Security dog
01
警備犬, 番犬
a trained dog used to protect property, people, or areas by warning of threats or chasing away intruders
例
They will bring the security dog with them tomorrow.
彼らは明日、警備犬を連れてくる予定です。
The security dog barked loudly at the stranger.
警備犬は見知らぬ人に大声で吠えた。
