ex·po·nent 
(ĭk-spōnənt, ĕkspō′nənt)
(ĭk-spōnənt, ĕkspō′nənt)n.
1. One that expounds or interprets.
2. One that speaks for, represents, or advocates: Our senator is an exponent of free trade.
3. Abbr. exp Mathematics A number or symbol, as 3 in (x + y)3, placed to the right of and above another number, symbol, or expression, denoting the power to which that number, symbol, or expression is to be raised. Also called power.
adj.
Expository; explanatory.
[Latin expōnēns, expōnent-, present participle of expōnere, to expound; see EXPOUND.]
- unremitting
- unremittingly
- unremittingness
- unrepentant
- unrepentantly
- unreproved
- unrequited
- unrequitedly
- unreserve
- unreserved
- unreservedly
- unreservedness
- unresponsive
- unresponsively
- unresponsiveness
- unrest
- unrestrained
- unrestrainedly
- unrestrainedness
- unrestraint
- unretire
- unretiree
- unriddle
- unriddler
- unrifled