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ordinal number

ordinal number

1 3.4
A number that shows position in a list
  • noun
  • /ˈɔrdənl ˈnʌmbər/
translation icon : número ordinal
  • Local councils are not named with an ordinal number.

Examples

  • First, second, third, etc. are ordinal numbers used to rank things.

    Blog text (8)
  • Otherwise, it would be a rating system, and you shouldn't use ordinal numbers to describe ratings.

    Blog text (8)
  • A great book for teaching ordinal numbers or marine animals!

    Blog text (5)
  • Treat ordinal numbers (1st, 2nd, 3rd, etc.) as you would cardinal numbers (1, 2, 3, etc.).

    Academic text (2002)
  • The instructor recorded the ordinal number of the pedestrian who offered assistance (i.e., that person was the first, fourth, ninth, or whatever number passerby).

    Academic text (2000)
  • And this gave rise to the canonical tradition that attaches an ordinal number to this council ("the sixth council"), which is done only for ecumenical councils, not for local councils.

    Academic text (2010)
  • An ordinal number tells us the position of an item in a list, like first or second.

  • In a race, the runner who finishes first gets the gold medal, while others are assigned ordinal numbers.

  • When organizing the books, I labeled them with ordinal numbers to indicate their order on the shelf.

Synonyms

ordinal
vsordinal number
1 3.8

A number that shows the position in a sequence, like first or second

is the longer phrase that emphasizes the numeric aspect

Antonyms

cardinal number
  • Specialized
1 2.4

A number that shows how many things there are, not their order, for example one, two, three

Surface Forms

Morphology

ordinal + number

The phrase is directly compositional: 'ordinal' (indicating position in an order) modifies 'number', so the combined meaning is a number that shows position in a sequence. This adjective+noun pattern is semantically transparent and common across languages, so a B1 learner who knows both constituents would readily infer the meaning.

Etymology

Ordinal number comes from numbers that show a place in a line, like first, second, third. So, an ordinal number tells 'position' or 'order' in a list.