accelerate UK /əkˈsɛl.əˌɹeɪt/US /ɪkˈsɛl.əˌɹeɪt/verb 7adjective 1forms 3 verb7 •To cause to move faster; to quicken the motion of; to add to the speed of. •To cause a change of velocity. •To become faster; to begin to move more quickly.The car began to accelerate as soon as the light turned green. •To quicken the natural or ordinary progression or process of.to accelerate the growth of a plant, the increase of wealth, etc.The company plans to accelerate its growth with new marketing strategies. •To enable a student to finish a course of study in less than normal time. •To hasten, as the occurrence of an event. •Grow; increase. adjective1 •(no longer used) Accelerated; quickened; hastened; hurried.... a general knowledg of the definition of motion, and of the distinction of natural and violent, even and accelerate, and the like, sufficing. — 1662 formsaccelerated · accelerating · accelerates