WordNet sense 1 (a large indefinite number):

battalion, multitude, plurality, large number

WordNet sense 2 (an association of criminals):

mob, ring

WordNet sense 3 (an exclusive circle of people with a common purpose):

camp, clique, coterie, ingroup, inner circle

WordNet sense 4 (a cream that cleanses and tones the skin):

face pack

WordNet sense 5 (have with oneself; have on one's person):

carry, take

WordNet sense 6 (press tightly together or cram):

jam, pile, throng

WordNet sense 7 (hike with a backpack):

backpack

WordNet sense 8 (press down tightly):

tamp, tamp down

WordNet sense 9 (have the property of being packable or of compacting easily):

compact, compact

WordNet sense 10 (compress into a wad):

bundle, wad

WordNet sense 11 (load with a pack):

load down