Third-person singular simple present indicative form of decelerate.(verb)
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Use "decelerates" in a sentence
"Here's an off-the-rack sports car with lateral adhesion in the range of 1 g, a car that hits 60 mph in 4 seconds the 394-horsepower Carrera S with the dual-clutch PDK gearbox, a car that trips the trap lights in about 12 seconds and decelerates from 60 mph to 0 in about 100 feet."
"Japan is "growing more dependent on monetary policy" because "there isn't much room to expand fiscal policy in case the economy decelerates," he said."
"Throw another task in the mix and very fast decelerates to fast or even to slow or at least to too slow."