- a number defining the position of something in a series, such as ‘first’, ‘second’, or ‘third’. Ordinal numbers are used as adjectives, nouns, and pronouns.
noun: ordinal number, plural noun: ordinal numbers
- IPA[ˈôrdnəl ˈnəmbər]
- a number defining a thing's position in a series, such as “first,” “second,” or “third.” ...
Oxford American Dictionary