Unfriend: Word of the Year 2009, New Oxford American Dictionary

Unfriend was named Word of the Year 2009

It has both currency and potential longevity. — Christina Lindberg

The word unfriend has just been named Word of the Year by the New Oxford American Dictionary.

Unfriend is defined as a verb that means ‘to remove someone as a friend on a social networking site such as Facebook’. “It has both currency and potential longevity,” stated Christine Lindberg, senior lexicographer for Oxford’s US dictionary programme. The word, however, is informal.

Other word finalists included …

a method of tagging a topic on Twitter so it can be found by other tweeters
people who are distracted by texting while driving