numeral UK /ˈnjuːməɹəl/US /ˈnuməɹəl/noun 4adjective 1forms 1 noun4 •A symbol that is not a word and represents a number, such as the Arabic numerals 1, 2, 3 or the Roman numerals I, V, X, L. •A representation of a number composed of such symbols.Compare the numeral for the product with the original decimal numeral. — 1966 •A number word, a simple or compound word for a number often having particular grammatical attributes depending on the language. •A card whose rank is a number (usually including the ace as 1).Jacks, queens, and kings are not numerals. adjective1 •Of or relating to numbers; numerical.A long train of numeral progressions. — 1689 formsnumerals