having a lot of things to do and therefore not free
I’m busy right now; can I call you back later?
During exam week, the students were too busy to hang out.
(of a place or time) full of activity and people
The market is especially busy on Saturdays.
We avoided the busy city center during rush hour.
(of a telephone line) already in use so that calls cannot get through
I tried calling, but the number was busy.
If the line is busy, just leave a message.
containing too many details, colours, or elements so that it looks confusing
The wallpaper was too busy, so we painted the wall instead.
I like simple slides; yours are a bit busy.
to occupy yourself or someone else with activity
She busied herself sorting the photos all afternoon.
The volunteers busied themselves setting up chairs before the event.