Everybody know what “tweet” actually means- the act of posting a “tweet” from Twitter. But it was not recognized as a real word. But the time is changing.
Well, now it is formally recognized as a part of the original English language, thanks to the addition of the word by the official arbiter of English – the Oxford English Dictionary.
OED chief editor, John Simpson announced that the word would be official as both a noun and a verb, from the June update.
Previously Tweet has been a word, recognized as birds. Now for a change, that definition has been expanded to include Twitter. The current explanation being “To make a posting on the social networking service Twitter. Also: to use Twitter regularly or habitually.”
Source: http://allthingsd.com/20130616/tweet-is-now-a-real-word-and-the-oxford-english-dictionary-says-so/