Nouns

(n)offprint, reprint, separatea separately printed article that originally appeared in a larger publication
(n)separatea garment that can be purchased separately and worn in combinations with other garments

Verbs

(v)separate, divideact as a barrier between; stand between“The mountain range divides the two countries”
(v)separate, disunite, divide, partforce, take, or pull apart“He separated the fighting children”, “Moses parted the Red Sea”
(v)distinguish, separate, differentiate, secern, secernate, severalize, severalise, tell, tell apartmark as different“We distinguish several kinds of maple”
(v)divide, split, split up, separate, dissever, carve upseparate into parts or portions“divide the cake into three equal parts”, “The British carved up the Ottoman Empire after World War I”
(v)separatedivide into components or constituents“Separate the wheat from the chaff”
(v)classify, class, sort, assort, sort out, separatearrange or order by classes or categories“How would you classify these pottery shards — are they prehistoric?”
(v)separate, dividemake a division or separation
(v)separate, part, split up, split, break, break updiscontinue an association or relation; go different ways“The business partners broke over a tax question”, “The couple separated after 25 years of marriage”, “My friend and I split up”
(v)separate, part, splitgo one's own way; move apart“The friends separated after the party”
(v)break, separate, split up, fall apart, come apartbecome separated into pieces or fragments“The figurine broke”, “The freshly baked loaf fell apart”
(v)discriminate, separate, single outtreat differently on the basis of sex or race
(v)separate, divide, partmove or break apart“The two pieces that we had glued separated”
(v)branch, ramify, fork, furcate, separatedivide into two or more branches so as to form a fork“The road forks”

Adjectives

(a)separateindependent; not united or joint“a problem consisting of two separate issues”, “they went their separate ways”, “formed a separate church”
(s)freestanding, separatestanding apart; not attached to or supported by anything“a freestanding bell tower”, “a house with a separate garage”
(s)separateseparated according to race, sex, class, or religion“separate but equal”, “girls and boys in separate classes”
(s)disjoined, separatehave the connection undone; having become separate