I know of four types of numbers:
-cardinal (e.g. one, 5, ninteen)
-ordinal (e.g. 1st, second, 23rd)
-nominal (e.g. player 5, zip code: 87558)(i.e used define a term rather than give a relative position.)
-and a fourth that indicates how many times something has been done. (E.g. Once, twice)
Each of these types of numbers, other than the fourth category, can be written as neumerals or spelled out, but what is the name of the fourth category?