yion
Words ending with ion would include competition, perdition, rendition, nation, vacation, etc., all of which are nouns.
"How do you pronounce the word ion?" The word 'ion' is pronounced i-on(I-oN)
Discretion, Excretion, Accretion, Secretion, Bet ion, Get ion, Jet ion, Let ion, Met ion, Net ion, Pet ion, Set ion, Skeet ion, Vet ion, Wet ion.
It is for most people, as in Ion. Dialects, such as Scottish, may acknowledge the 'r'
Lion. Zion.
One such word is mansion.
Occupation
Battalion.
yion
A fourteen (14) letter word that ends with ion or tion: administration
Words ending with ion would include competition, perdition, rendition, nation, vacation, etc., all of which are nouns.
occupation
tion
Radion
Ion.
"differentiation" is a noun. (Most words ending in "ion" are nouns. )