The action or fact of calling someone or something back.
Memory; the ability to remember.
(information retrieval) the fraction of (all) relevant material that is returned by a search
To withdraw, retract (one's words etc.); to revoke (an order).
To call back, bring back or summon (someone) to a specific place, station etc.
To bring back (someone) to or from a particular mental or physical state, activity etc.
To call back (a situation, event etc.) to one's mind; to remember, recollect.
To call again, to call another time.
To request or order the return of (a faulty product).