"Word" comes from the english saying "my word" which in turn comes from "I give you my word". Meaning that a statement is right and you would be willing to put your honor on the line to back it up.
Once again, this comes from "my word". When one says "word" as if asking a question, he or she is asking if the person that made the statement would swear to it.
Person 1: "Man having chapped lips is annoying."
Person 2: "Word." (meaning I agree and I would swear to it)
person 1: "I had corn for dinner last night!"
Person 2: "Word?!" (meaing would you swear by it)
1) well said
2)said in a agreement
3) can be used as a greeting, hey whats up
1..and 2...Yo u goin to that rocks tanite....word
3) word up
"Word" is the shortened form of the phrase: "my word is my bond" which was originated by inmates in U.S. prisons. The longer phrase was shortened to "word is bond" before becoming "word," which is most commonly used. It basically means "truth." Or "to speak the truth."
"Yo, I fucked twelve bitches last night."
"Word?" ("You speak the truth?")
"Word." ("I speak the truth.")
A versatile declaration, originating (more or less) in hip-hop culture.
"Word" has no single meaning, but is used to convey a casual sense of affirmation, acknowledgement, agreement, or to indicate that something has impressed you favorably.
Its usage among young blacks has been parodied ad nauseam among clueless suburban whites.
"Come on, man, we're going to the store."
I concur, my fellow African American friends.
"Man, she's got some fine titties!"
Can also be used as a question, meaning "really?"
"Man, this sucks."
"I just got a new car!"
I'd like to hit Monica from the backside, yo!!
"I agree." can be used to express agreement and approval in several ways.
1. a: "Man, that song rocks."
2. a: "I'm not gonna take crap from him anymore."