workaholic
🇺🇸
/ˌwɜːrkəˈhɑːlɪk/
🇬🇧
/ˌwɜːkəˈhɒlɪk/
a person who works too much and cannot stop working
My boss is a workaholic who often stays at the office until midnight.
私の上司は仕事中毒で、よく真夜中までオフィスに残っています。