- numeral, numerical, numeric - of or relating to or denoting numbers; "a numeral adjective"; "numerical analysis"
- numeral, number - a symbol used to represent a number; "he learned to write the numerals before he went to school"
--1 is a kind of symbol
--1 has particulars:Arabic numeral, Hindu numeral, Hindu-Arabic numeral; Roman numeral; antilogarithm, antilog