- NUMERAL
- Quantitative symbol
- Necessity in many passwords
- One of many in a phone book
- It may be Roman or Arabic
- 1, for one
- Digit
- C or D but not F
- Roman ___
- C or D, to old Romans
- X, at times
- Integer
- Mathematical symbol
- C or D, e.g.
- C, for Caesar
- Roman X, e.g.
- Expressing a number.
- Number symbol.
- Figure.
- Worn by a football player.
- An Arabic creation.
- Arabic or Roman.
- V or X or L.
- Figure of a kind.
- One or two.
- 4 or IX
- Roman or Arabic
- Roman or Arabic item
- V or X, to a Roman
- C or D, to Caesar
- Arabic or Roman item
- I, for one
- X, e.g.
- What's required in some passwords
- X, but not Y
- 3 or III, e.g.
- Roman X or Arabic 10, e.g.
- 1 is one
- It can be Roman
- One is one
- Part of 44-Across
- 5 or V, e.g.
- Keypad symbol
- Math class symbol
- Inclusion in safer passwords
