Zion, Lion, Pavillion...
The word that ends with "ion" is "suppression."
A fourteen (14) letter word that ends with ion or tion: administration
technicion
An example verb that ends with "ion" is vacation(vacations, vacationing, vacationed)Example sentence: We always vacation at the beach.The word "vacation" also functions as a noun.
Radion
Populat ion
occupation
Rotation radiation
translates mastercate
habitation
Competition
"definition"