13-Letter Words End with 'ion'

There are 400 13-letter words that end with 'ion'.

authorization	autoinfection
bacterization	balkanization
barbarization	beatification
beneficiation	accommodation
accreditation	acculturation
accustomation	acetification
acidification	actualization
afforestation	agglomeration
agglutination	amplification
anglicization	animadversion
animalization	anticollision
anticorrosion	antievolution
antipollution	antirecession
antirejection	appropriation
approximation	arabicization
argumentation	aromatization
assassination	bioconversion
brutalization	calcification
caprification	carbonization
carbonylation	carboxylation
carburization	cartelization
catechization	cauterization
cephalization	certification
chemisorption	cicatrization
circumvention	clarification
coalification	cocainization
cocultivation	collaboration
cycloaddition	dandification
decarbonation	decerebration
decomposition	decompression
decortication	decrepitation
defibrination	deforestation
degranulation	demonstration
demyelination	densification
denticulation	deodorization
deoxygenation	derealization
desegregation	deterioration
determination	diazotization
dieselization	discoloration
disconnection	disinhibition
dispossession	disproportion
dissemination	dissimilation
dissimulation	commemoration
commiseration	communication
communization	comprehension
concatenation	concentration
condescension	confabulation
confederation	configuration
conflagration	confrontation
consideration	consolidation
constellation	consternation
contamination	contemplation
contraception	contradiction
contravention	cornification
corroboration	counteraction
documentation	dogmatization
domestication	domiciliation
dramatisation	dramatization
electrocution	encapsulation
glycosylation	gratification
hallucination	harmonization
haruspication	hellenization
hybridization	hydrogenation
hydroxylation	hyperfunction
hypothecation	magnetization
magnification	malabsorption
maladaptation	manifestation
martyrization	matriculation
mechanization	mercerization
metallization	enculturation
equilibration	eroticization
expectoration	expostulation
expropriation	extermination
extrapolation	extravasation
lignification	linearization
lithification	luteinization
machicolation	misallocation
misassumption	miscegenation
misconception	misconnection
misestimation	misevaluation
misimpression	misperception
mitochondrion	modernisation
modernization	mollification
mortification	multifunction
multitrillion	mummification
mutualization	mystification
formalization	fortification
fossilization	fractionation
fragmentation	frequentation
gallicization	galvanization
germanization	gesticulation
ghettoization	glamorization
globalization	glorification
factorization	falsification
fasciculation	fertilization
feudalization	impersonation
improvisation	incarceration
incardination	incorporation
incrimination	indisposition
individuation	ingurgitation
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Note: These 400 13-letter words that end with 'ion' are found from the USA & Canada version of the tournament Scrabble word list.

Also see words end with tion, sion, lion, nion, rion, xion, hion, pion, gion, mion, cion, dion, vion, bion, eion, zion.

4-letter words end with 'ion' (3)
5-letter words end with 'ion' (8)
6-letter words end with 'ion' (35)
7-letter words end with 'ion' (78)
8-letter words end with 'ion' (164)
9-letter words end with 'ion' (319)
10-letter words end with 'ion' (402)
11-letter words end with 'ion' (480)
12-letter words end with 'ion' (437)
13-letter words end with 'ion' (400)
14-letter words end with 'ion' (301)
15-letter words end with 'ion' (194)