1.
If a place is ~, it is full of people.
He peered slowly around the small ~ room...
ADJ: oft ADJ with n
2.
If a place is ~, a lot of people live there.
...a ~ city of 2 million...
ADJ
3.
If your timetable, your life, or your mind is ~, it is full of events, activities, or thoughts.
Never before has a summit had such a ~ agenda.
= packed
ADJ: oft ADJ with n