To supply with nourishment; to nourish, cause to grow, support, sustain.

transitive. To maintain (a physical object) in good condition or working order; spec. (a) to maintain (a building) in good repair; (b) to keep (a…

To maintain or preserve in proper order.

transitive. To keep (a thing) in good or working condition; to undertake or perform the maintenance of. Obsolete.

To maintain in good condition or in a proper state of repair.

transitive. To keep up, in various senses; esp. to maintain in good order.