Dictionary
ordinal number
noun
: a number (such as first, fifth, or 22nd) that is used to show the position of someone or something in a series
Full Definition of ORDINAL NUMBER
1
: a number designating the place (as first, second, or third) occupied by an item in an ordered sequence — see number table
2
: a number assigned to an ordered set that designates both the order of its elements and its cardinal number
See ordinal number defined for English-language learners
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First Known Use of ORDINAL NUMBER
1607
ORDINAL NUMBER Defined for Kids
ordinal number
noun
Definition of ORDINAL NUMBER for Kids
: a number that is used to show the place (as first, fifth, 22nd) taken by an element in a series
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