what is ordinal number

An ordinal number is a number that indicates the position or order of something in relation to other numbers, such as first, second, third, and so on. Ordinal numbers are used to represent the rank or position of an object or a person. They are also referred to as positioning or ranking numbers. Ordinal numbers can be written using numerals as prefixes and adjectives as suffixes, such as 1st, 2nd, 3rd, 4th, 5th, 6th, 7th, 8th, and so on. The sequence of ordinal numbers varies based on the parameters that are used to define the positions, such as weight, height, marks, size, etc..