1. adjective Spending a lot of one's time focused or working on a particular task, goal, or project. I'm so busy with school right now that I haven't seen my friends in weeks.

2. verb To immerse oneself in a task or project. In this usage, a reflexive pronoun is used between "busy" and "with." Ever since my break-up with Ben, I've busied myself with work to keep from crying all day long.

3. verb To engage or occupy someone with a distraction, task, or project. In this usage, a noun or pronoun is used between "busy" and "with." If you busy the baby with a toy, he'll stop crying in no time. My husband is off all week, so I'm busying him with repairs around the house.