Definition of Roman numeral in US English:

Roman numeral


  • Any of the letters representing numbers in the Roman numerical system: I = 1, V = 5, X = 10, L = 50, C = 100, D = 500, M = 1,000. In this system, a letter placed after another of greater value adds (thus XVI or xvi is 16), whereas a letter placed before another of greater value subtracts (thus XC or xc is 90).

    • ‘These categories are designated with Roman numerals from I to IV, respectively.’
    • ‘Adopting the persona of the highly resourceful central character, initially little is known of his identity or background except for the Roman numeral, XIII, tattooed on his shoulder.’
    • ‘Folio numbers often exist in both Arabic and Roman numerals and are a bit confused.’
    • ‘The group was called Twenty written XX from Roman numerals, pronounced double-cross.’
    • ‘He evidently releases large-scale limited editions with both Arabic numerals and Roman numerals and, as well, markets both European and domestic editions.’
    • ‘At the main entrance there was a roundabout, and above the doors there was a huge gilt V on the front wall - a Roman numeral for the number 5.’
    • ‘The centrepiece of the new extension is a sundial with Roman numerals - very handy for teaching the children all about hours and minutes and the movement of the earth and sun.’
    • ‘There were Roman numerals engraved around the outermost ring from one to twelve, like a clock, only in reverse order.’
    • ‘The biggest Roman numeral is M, for 1000, so one easy way to write large numbers is to line up the Ms: MMMMMMM would be 7000, for instance.’
    • ‘References are given by volume number (in Roman numerals, followed by the page number).’


Roman numeral

/ˈroʊmən ˈn(j)um(ə)rəl/