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Words ending with ION (9-letter)

A curated list of 9-letter words tailored to this exact pattern. Endings like ION often mark word families—helpful to confirm tense or morphology. For example: abduction, abjection, abolition.

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275 words

Word	Length	Syllables
abduction	9	3
abjection	9	3
abolition	9	4
abruption	9	3
accession	9	3
accordion	9	3
accretion	9	3
actuation	9	3
acylation	9	4
addiction	9	3
adduction	9	3
admission	9	3
adoration	9	4
adulation	9	4
advection	9	3
affection	9	3
agitation	9	4
animation	9	4
anthelion	9	3
anthemion	9	3
antiunion	9	3
apportion	9	3
ascension	9	3
aspersion	9	3
assertion	9	3
attention	9	3
attrition	9	3
avocation	9	4
battalion	9	3
bijection	9	3
bisection	9	3
carbanion	9	3
carnation	9	3
caseation	9	3
causation	9	3
centurion	9	3
cessation	9	3
chalazion	9	3
chelation	9	3
ciliation	9	3
coalition	9	3
cognation	9	3
cognition	9	3
collation	9	3
collision	9	3
collodion	9	3
collusion	9	3
commotion	9	3
communion	9	3
companion	9	3
concision	9	3
condition	9	3
confusion	9	3
connexion	9	3
contagion	9	3
contusion	9	3
corrasion	9	3
corrosion	9	3
cotillion	9	3
cremation	9	3
crenation	9	3
criterion	9	3
damnation	9	3
dandelion	9	3
dealation	9	3
deception	9	3
decillion	9	3
decoction	9	3
deduction	9	3
defection	9	3
deflation	9	3
dejection	9	3
demission	9	3
dentition	9	3
depiction	9	3
depletion	9	3
desertion	9	3
detection	9	3
detention	9	3
detrition	9	3
deviation	9	3
dictation	9	3
diffusion	9	3
digestion	9	3
dimension	9	3
direction	9	3
diversion	9	3
education	9	4
effluxion	9	3
egression	9	3
elevation	9	4
elocution	9	4
emanation	9	4
emulation	9	4
entropion	9	3
epilation	9	4
erudition	9	4
evocation	9	4
evolution	9	4
exception	9	3
exclusion	9	3
excretion	9	3
excursion	9	3
execution	9	4
exemption	9	3
expansion	9	3
expiation	9	3
explosion	9	3
expulsion	9	3
exsertion	9	3
extension	9	3
extortion	9	3
extrusion	9	3
exudation	9	4
fellation	9	3
filiation	9	3
flotation	9	3
foliation	9	3
formation	9	3
furcation	9	3
gammadion	9	3
gemmation	9	3
gestation	9	3
gradation	9	3
gustation	9	3
guttation	9	3
hydration	9	3
imitation	9	4
immersion	9	3
impaction	9	3
impassion	9	3
implosion	9	3
impulsion	9	3
inanition	9	4
incaution	9	3
inception	9	3
inclusion	9	3
incursion	9	3
indention	9	3
indiction	9	3
induction	9	3
infection	9	3
inflation	9	3
inflexion	9	3
ingestion	9	3
injection	9	3
insertion	9	3
intension	9	3
intention	9	3
intrusion	9	3
intuition	9	3
inunction	9	3
invention	9	3
inversion	9	3
irruption	9	3
isolation	9	4
iteration	9	4
lactation	9	3
laudation	9	3
libration	9	3
lineation	9	3
liquation	9	3
malathion	9	3
medallion	9	3
mediation	9	3
mentation	9	3
migration	9	3
modillion	9	3
multipion	9	3
narration	9	3
nervation	9	3
nitration	9	3
nonaction	9	3
nonillion	9	3
nutrition	9	3
objection	9	3
obsession	9	3
obtrusion	9	3
obviation	9	3
occlusion	9	3
octillion	9	3
olfaction	9	3
operation	9	4
ovulation	9	4
oxidation	9	4
ozonation	9	4
palmation	9	3
palpation	9	3
parathion	9	3
parhelion	9	3
partition	9	3
perdition	9	3
perfusion	9	3
pervasion	9	3
phelonion	9	3
phonation	9	3
placation	9	3
planation	9	3
plication	9	3
pollution	9	3
postilion	9	3
precision	9	3
predation	9	3
prelusion	9	3
prenotion	9	3
prevision	9	3
privation	9	3
probation	9	3
profusion	9	3
prolusion	9	3
promotion	9	3
pronation	9	3
proration	9	3
provision	9	3
pulsation	9	3
purgation	9	3
quotation	9	3
radiation	9	3
rebellion	9	3
recension	9	3
reception	9	3
recession	9	3
reclusion	9	3
recursion	9	3
redaction	9	3
reduction	9	3
reedition	9	3
refashion	9	3
refection	9	3
reflation	9	3
reflexion	9	3
rejection	9	3
reliction	9	3
remission	9	3
rendition	9	3
repletion	9	3
repulsion	9	3
resection	9	3
retention	9	3
reversion	9	3
revulsion	9	3
ruination	9	3
saltation	9	3
salvation	9	3
satiation	9	3
secession	9	3
seclusion	9	3
secretion	9	3
seduction	9	3
selection	9	3
sensation	9	3
serration	9	3
siltation	9	3
situation	9	3
solvation	9	3
sortition	9	3
stanchion	9	2
striation	9	2
sublation	9	3
subregion	9	3
suffusion	9	3
summation	9	3
suspicion	9	3
tarnation	9	3
titration	9	3
tradition	9	3
ululation	9	4
urination	9	4
valuation	9	3
variation	9	3
vermilion	9	3
vernation	9	3
vibration	9	3
violation	9	3
vitiation	9	3

FAQs

What’s typical about ION-ending words?
ION often marks suffix families; think about derivatives when guessing.

Do you include UK/US spellings?
Where they exist, both may appear.