(transitive) to keep
Mantenga la tapa cerrada, por favor. ― Keep the lid closed, please.
(transitive) to maintain, to support
Yo mantengo a mis hijos. ― I support my children.
(transitive) to sustain, to preserve, to retain, to uphold
(transitive) to maintain, continue, to keep up
Mantengan el buen trabajo. ― Keep up the good work.
(transitive) to stay, to remain
(reflexive) to maintain, to keep, to stay, to remain
Me voy a mantener despierto toda la noche estudiando la gramática española.I'm going to keep myself awake all night studying Spanish grammar. (A more natural way of expressing this in many English dialects would be "I'm going to stay awake.")
(reflexive) to stand, to hold, to remain, to continue (e.g. hold firm, stand strong, stand together, stand on one's feet)
Debemos mantenernos firmes exigiendo libertad. ― We must stand firm in demanding freedom.
(reflexive) to stick to (e.g. stick to one's guns)
(reflexive) to be maintained, to be retained, to be sustained
