Viva – definition of viva by The Free Dictionary

vi·va (vē′və, -vä′) interj. Used to express acclamation, salute, or applause. [Italian and Spanish, (long) live, both from Latin vīvat, third person sing. present subjunctive of vīvere, to live; see gwei- in Indo-European roots.] viva (ˈviːvə) interj long live; up with (a specified person or thing) [C17: from Italian, literally: may (he …

: https://www.thefreedictionary.com/viva