minder
/ˈmaɪndə(r)/noun
1- a person whose job it is to look after someone or something照料人员, 看管人员：
in combination a baby-minder.保姆。
1.1
- informal a bodyguard employed to protect a celebrity or criminal〈非正式〉保镖; 受雇保护罪犯的人：
he was accompanied by his personal minder.
他有私人保镖跟随左右。