40

Letters that make 40

0, 4 are letters that make '40'

are words within '40'

2 possible definitions for '40'

Under this definition, 40 is a noun and has the following properties:

forty, XL have the same meaning as '40'

'40' can be a type of large integer.

Under this definition, 40 is an adjective and has the following properties:

xl, twoscore, forty have the same meaning as '40'

cardinal is similar to 40.