In computing time, ordinal numbers are reckoned the same as cardinal numbers.
A full stop is placed after most abbreviations, after initial letters, and after ordinal numbers in Roman characters.
The ordinal numbers should have no adverbial form: "firstly," "secondly," and the rest are words without meaning.
Being adjectives, the ordinal numbers take the plural j and accusative n when necessary.
The notion of an “aggregate” in general underlies the system of ordinal numbers.
Others give lists of the cardinal and ordinal numbers in French, and one adds to these a nomenclature of the different colours.
Also in addition to the cardinal numbers there are the ordinal numbers: the fifth apple and the tenth pear claim thought.
ordinal numbers compounded with nouns take the hyphen in such expressions as second-hand, first-rate, and the like.
The present chapter shows that they are certainly found in some, and possibly in all of the ordinal numbers.
The affected use of cardinal, instead of ordinal numbers, ought not to be imitated.
A number, such as 3rd, 11th, or 412th, used in counting to indicate position in a series but not quantity. Compare cardinal number.
Numbers that indicate the order or position of something in a group or set, such as first, second, or fifteenth. (Compare cardinal numbers.)