engross in (something)
To capture and hold someone's interest in something. A noun or pronoun can be used between "engross" and "in." Dad is engrossed in fixing the car, so he can't talk right now. Although Dad tries to engross me in auto repairs, they're just not interesting to me. I'm sorry I didn't call you back—I got engrossed in a movie.
engross someone in something
to occupy someone's time or thinking with something. You can't expect me to engross Tom in my work. We were all engrossed in what the speaker had to say.