WordNet sense 1 (an exclusive circle of people with a common purpose):

clique, coterie, pack, ingroup, inner circle

WordNet sense 2 (shelter for persons displaced by war or political oppression or for religious beliefs):

refugee camp

WordNet sense 3 (a site where care and activities are provided for children during the summer months):

summer camp

WordNet sense 4 (temporary living quarters specially built by the army for soldiers):

bivouac, cantonment, encampment

WordNet sense 5 (live in or as if in a tent):

encamp, tent, camp out

WordNet sense 6 (providing sophisticated amusement by virtue of having artificially (and vulgarly) mannered or banal or sentimental qualities):

campy

WordNet sense 7 (lacking aesthetic or social taste):

tasteless

WordNet sense 8 (establish or set up a camp):

camp down