Definition of "four-speed" []

• Having four forward speeds. (noun)
• A vehicle with a transmission that has four forward speeds. It might or might not be a manual transmission. (noun)

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• "For 2012 Jeep has replaced its hoary 3.8-liter overhead valve V6 with a 3.6-liter, 285-horsepower V6 up 83 hp as well as a five-speed automatic transmission, replacing the outdated four-speed auto box."
• "Xplore Adventure Series 2011 Jeep Wrangler Dan Neil/The Wall Street Journal Powertrain: 3.8-liter overhead valve V6; four-speed automatic transmission; two-speed transfer case; part-time four-wheel drive."
• "The automatic-transmission option is a four-speed, which helps account for less-than-stellar highway fuel economy of 35 miles per gallon."