(transitive) To carry out spring-cleaning on (a room, a house, etc). / (intransitive) To engage in spring-cleaning.

simple past tense and past participle of spring-load

Of a mechanical device, containing a spring that holds a component in a particular position.

(intransitive) To appear suddenly. / (intransitive, figuratively) To come rapidly into existence.

Of a mechanical device, containing a component that compresses or extends a spring while held in place and so springs free when released.

Alternative spelling of box spring

A box-shaped frame into which is a set of spiral springs, upon which rests a bed mattress.

Alternative form of spring cleaning

(chiefly China) Chinese New Year

(astronomy) vernal equinox