Definition of ordinal number in English:

ordinal number

Translate ordinal number into Spanish


  • A number defining a thing's position in a series, such as “first,” “second,” or “third.” Ordinal numbers are used as adjectives, nouns, and pronouns.

    Compare with cardinal number

    ‘We should say immediately that the ancient Greeks had different systems for cardinal numbers and ordinal numbers so we must look carefully at what we mean by Greek number systems.’
    • ‘However, it was not to be, but the second paper describes his theory of well-ordered sets and ordinal numbers.’
    • ‘It basically revolves round the set of all ordinal numbers.’
    • ‘His work on ordered sets and ordinal numbers is fundamental to the subject.’
    • ‘This pattern of language differences for ordinal numbers is reminiscent of findings for cardinal numbers in a number of ways.’


ordinal number

/ˈôrdnəl ˈnəmbər/ /ˈɔrdnəl ˈnəmbər/