Definition of "4wd" [4wd]

• A transmission that provides power directly to all four wheels of a motor vehicle (noun)
• A motor vehicle with a four-wheel drive transmission system (noun)

WordNet. Princeton University. 2010.

• "There was a small hill I was unable to drive up in 4wd with normal all seasons."
• "Incidentally, if you go to the preserve, don't attempt it on your own even if you have 4wd, which is probably useful."
• "I don't care what they do to their vehicle, but I have to laugh when I tow them somewhere with my normal 4wd S-10 because they bottomed out and broke the oil pan!"