7

2 possible definitions for '7'

7 as "the cardinal number that is the sum of six and one"

Under this definition, 7 is a noun and has the following properties:

heptad, septet, seven, VII, sevener, septenary have the same meaning as '7'

'7' can be a type of digit, figure.

seven, vii, 7 are derivatives of '7'.

Under this definition, 7 is an adjective and has the following properties:

seven, vii have the same meaning as '7'

cardinal is similar to 7.