WordNet sense 1 (a separately printed article that originally appeared in a larger publication):

offprint, reprint, reprint

WordNet sense 2 (act as a barrier between; stand between):

divide

WordNet sense 3 (separated into parts or pieces):

divided

WordNet sense 4 (treat differently on the basis of sex or race):

discriminate, single out

WordNet sense 5 (separate into parts or portions):

dissever, split, carve up, split up

WordNet sense 6 (discontinue an association or relation; go different ways):

break, part, break up

WordNet sense 7 (characteristic of or meant for a single person or thing):

individual, single

WordNet sense 8 (not shared):

unshared

WordNet sense 9 (marked by separation of or from usually contiguous elements):

isolated

WordNet sense 10 (having no elements in common):

disjoint

WordNet sense 11 (constituting a separate entity or part):

discrete, distinct

WordNet sense 12 (being or feeling set or kept apart from others):

detached, separated

WordNet sense 13 (having characteristics not shared by others):

apart

WordNet sense 14 (taken out of or separated from):

removed

WordNet sense 15 (force, take, or pull apart):

disunite

WordNet sense 16 (separated or isolated from others or a main group):

segregated, unintegrated

WordNet sense 17 (arrange or order by classes or categories):

assort, class, classify, sort, sort out

WordNet sense 18 (have the connection undone; having become separate):

disjoined

WordNet sense 19 (not joined or linked together):

unconnected

WordNet sense 20 (mark as different):

differentiate, distinguish, tell, secern, secernate, severalise, severalize, tell apart

WordNet sense 21 (become separated into pieces or fragments):

fall apart, come apart

WordNet sense 22 (divide into two or more branches so as to form a fork):

branch, fork, ramify, furcate

WordNet sense 23 (standing apart; not attached to or supported by anything):

freestanding