Ordinal may refer to: *

Ordinal data Ordinal data is a categorical, statistical data type where the variables have natural, ordered categories and the distances between the categories are not known. These data exist on an ordinal scale, one of four Level of measurement, levels of m ...

, a statistical data type consisting of numerical scores that exist on an arbitrary numerical scale *

Ordinal date An ordinal date is a calendar date typically consisting of a ''year'' and an ''ordinal number'', ranging between 1 and 366 (starting on January 1), representing the multiples of a ''day'', called day of the year or ordinal day number (also know ...

, a simple form of expressing a date using only the year and the day number within that year * Ordinal Priority Approach, a multiple-criteria decision analysis method that aids in solving the group decision-making problems *

Ordinal indicator In written languages, an ordinal indicator is a character, or group of characters, following a numeral denoting that it is an ordinal number, rather than a cardinal number. Historically these letters were "elevated terminals", that is to say ...

, the sign adjacent to a numeral denoting that it is an ordinal number *

Ordinal number In set theory, an ordinal number, or ordinal, is a generalization of ordinal numerals (first, second, th, etc.) aimed to extend enumeration to infinite sets. A finite set can be enumerated by successively labeling each element with the leas ...

in set theory, a number type with order structures *

Ordinal number (linguistics) In linguistics, ordinal numerals or ordinal number words are words representing position or rank in a sequential order; the order may be of size, importance, chronology, and so on (e.g., "third", "tertiary"). They differ from cardinal numerals, ...

, a word representing the rank of a number *

Ordinal scale Ordinal data is a categorical, statistical data type where the variables have natural, ordered categories and the distances between the categories are not known. These data exist on an ordinal scale, one of four levels of measurement described ...

, ranking things that are not necessarily numbers *

Ordinal utility In economics, an ordinal utility function is a function representing the preferences of an agent on an ordinal scale. Ordinal utility theory claims that it is only meaningful to ask which option is better than the other, but it is meaningless to as ...

(economics): a utility function which is used only to describe the preference ordering between different outcomes.

Government

* Regnal ordinal, used to distinguish monarchs and popes with the same regnal name

Religion

Ordinal (liturgy) An ordinal (), in a modern context, is a liturgical book that contains the rites and prayers for the ordination and consecration to the Holy Orders of deacons, priests, and bishops in multiple Christian denominations, especially the Edwardine O ...

, particularly in Anglicanism, Lutheranism and Catholicism, is the book containing the rites for the ordination of deacons and priests, and the consecration of bishops **

Edwardine Ordinals The Edwardine Ordinals are two ordinal (liturgy), ordinals primarily written by Thomas Cranmer as influenced by Martin Bucer and first published under Edward VI, the first in 1550 and the second in 1552, for the Church of England. Both liturgical ...

, two early liturgical books of the Church of England * ''Ordinal'' can be a book that gives the ''ordo'' (ritual and rubrics) for celebrations, see

Order of Mass Order of Mass is an outline of a Mass celebration, describing how and in what order liturgical texts and rituals are employed to constitute a Mass. The expression Order of Mass is particularly tied to the Roman Rite where the sections under that ...

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