call up verb 4call-up noun 1forms 5 verb4 •To call on the telephone.The other night, you wouldn't believe The dream I just had about you and me I called you up, but we both agree It's for the best you didn't listen — 2012 •To summon (someone) to report for military service. •To select e.g. to a sports squad.Dean Ashton was called up to the England squad for the first time. •To retrieve from personal or computer memory.I remember looking in the card catalogue of the main Public Library under "Homosexuality" and not daring to call up the books because "they" might think I was one. — 1976 call-up noun1 •An order to report for military service.In addition, the call-up placed an enormous strain on the nation's railroads, suddenly faced with having to provide hundreds of trains to rush guardsmen to the border. — 2015 formscalled up · calling up · calls up · call ups · call-ups