Meaning of “pack” - Learner’s Dictionary

pack

verb uk us /pæk/
THINGS IN BAGS [ I, T ]

A2 to put your things into bags or boxes when you are going on holiday or leaving the place where you live:

I've got to go home and pack.
to pack your bags
→ Opposite unpack
CROWD [ T ]

If people pack a place, there are so many of them in it that it is very crowded:

Thousands of fans packed the club.

(Definition of “pack verb” from the Cambridge Learner’s Dictionary © Cambridge University Press)