having a lot of work to do
engaged, at work
Cases of word usage
1) in a busy way (busily)
2) extremely busy with and interested (in an activity, book etc) (engrossed)
3) a box for bees to live in; a place full of busy people (hive)
4) quick and energetic activity in a crowded and busy place (hustle)
5) an underground passage or tunnel, e.g. used to get from one side of a busy street to the other (subway)
6) vibrating; (of colour, light) strong; exciting and busy (vibrant)