Definition of "4x4" [4x4]

• A piece of timber with a cross section of 4 inches square. (abbreviation)
• A four-wheel-drive vehicle with a four-speed transmission. (abbreviation)
• A four-wheel vehicle with four-wheel-drive. (abbreviation)
• By extension, any four-wheel-drive vehicle. (abbreviation)

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• "Living in Wisconsin, I would have to agree that while a minivan (or anything for that matter) will work, a 4x4 is ideal."
• "I am with Sage Sam nothing beats a big deep forked main 4x4 or 5x5, to me they look like a more noble buck."
• "Chevy Z71 shortbox standard cab 4x4 is the truck for me."