1. (noun)maid, maiden an unmarried girl (especially a virgin)
2. (noun)maiden over, maiden (cricket) an over in which no runs are scored
3. (adj)inaugural, initiative, initiatory, first, maiden serving to set in motion "the magazine's inaugural issue"; "the initiative phase in the negotiations"; "an initiatory step toward a treaty"; "his first (or maiden) speech in Congress"; "the liner's maiden voyage"