What does «recuperar» mean in Spanish?

Recover.

Examples of use in Spanish: "recuperar lo perdido"; "recuperar la vista".
Collect materials for use.

Examples of use in Spanish: "recuperar chatarra".
(recuperar una hora de trabajo) Work for one hour in substitution of the one lost for any cause.
(recuperarse) To restore, recover after an illness or emotion.
(recuperarse) Reactivate business.