- 1extremely full of people synonym crowded The restaurant was packed. The show played to packed houses (= large audiences).
- 2 containing a lot of a particular thing packed with something The book is packed with information. -packed an information-packed book
- 3tightly packed pressed closely together The birds' nests are lined with tightly packed leaves.
- 4[not before noun] (informal) having put everything you need into cases, boxes, etc. before you go somewhere I'm all packed and ready to go.