to make more rapid; accelerate; hasten

She quickened her pace.

to give or restore vigor or activity to; stir up, rouse, or stimulate

to quicken the imagination.

to revive; restore life to

The spring rains quickened the earth.

to become more active, sensitive, etc.

This drug causes the pulse to quicken.

to become alive; receive life.

(of the mother) to enter that stage of pregnancy in which the fetus gives indications of life.

(of a fetus in the womb) to begin to manifest signs of life.

verb

dull , retard , slow , weaken , check , hinder , impede , obstruct

verb

accelerate , activate , actuate , animate , arouse , awaken , dispatch , energize , excite , expedite , galvanize , goad , grow , hasten , hurry , impel , incite , increase , innervate , innerve , inspire , kindle , liven , make haste , motivate , move , pique , precipitate , promote , refresh , revitalize , revive , rouse , shake up , speed , spring , spur , step up , stimulate , stir , strengthen , urge , vitalize , vivificate , vivify , hustle , advance , enliven , facilitate , further , invigorate , press , provoke , resuscitate , rush , sharpen