Definition of accelerate
1 : to move faster : to gain speed The car slowly accelerated. The pace of change has accelerated in recent months.
2 : to progress from grade to grade more rapidly than usual : to follow a speeded-up educational program
1 : to bring about at an earlier time Circumstances accelerated their departure.
2 : to cause to move faster accelerated his steps also : to cause to undergo acceleration
3a : to hasten the progress or development of accelerate our efforts
b : increase accelerate food production
4a : to enable (a student) to complete a course in less than usual time
b : to speed up (something, such as a course of study)
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