The New Oxford American Dictionary just announced the winner of its annual Word of the Year contest: unfriend. The winning word choice is explained on the Oxford University Press Blog : “In the online social networking context, its meaning is understood, so its adoption as a modern verb form makes this an interesting choice for Word of the Year. Most ‘un-‘ prefixed words are adjectives (unacceptable, unpleasant), and there are certainly some familiar ‘un-‘ verbs (uncap, unpack), but ‘unfriend’ is different from the norm. It assumes a verb sense of ‘friend’ that is really not used (at least not since maybe the 17th century!).”
You can connect to the dictionary on the Library Website through our database Oxford Reference Online . Click on the first title in red (middle of the page) English Dictionaries and Thesauruses and then The New Oxford American Dictionary is the first title listed.