To reserve a period of time to do something.
To recover lost time, as by travelling faster than usual.
To become quicker or faster.
To stimulate or assist the fermentation of (an alcoholic beverage, dough, etc.).
To inspire or stimulate (an action, a feeling, etc.).
To grow bright; to brighten.
To take on a state of activity or vigour comparable to life; to be excited or roused.
To put (someone or something) in a state of activity or vigour comparable to life; to excite, to rouse.
Of a pregnant woman: to first feel the movements of the foetus, or reach the stage of pregnancy at which this takes place; of a foetus: to begin to move.
To give life; to make alive.
To inspire or stimulate.
To apply quicksilver (mercury) to (something); to combine (something) with quicksilver; to quicksilver.
To make (something) quicker or faster; to hasten, speed up.
To come back to life, to receive life.
Of an alcoholic beverage, dough, etc.: to ferment.
To give life to (someone or something never alive or once dead); to animate, to resurrect, to revive.
In full quicken tree: the European rowan, rowan, or mountain ash (Sorbus aucuparia).
Synonym of couch grass (“a species of grass, Elymus repens”); also (chiefly in the plural), the underground rhizomes of this, and sometimes other grasses.