Filled to capacity or tightly crowded. adjective
The stadium was packed with fans eager to see the concert.
The subway was so packed during rush hour that there was no room to move.
Containing a large amount of something; full of content or information. adjective
The book is packed with useful information about gardening.
The conference schedule is packed with interesting sessions and workshops.
Past tense of 'pack', meaning to fill a container or space with items. verb
She packed her suitcase the night before the trip.
They packed the car with all the camping gear they would need for the weekend.