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Words ending with IN (7-letter)

A curated list of 7-letter words tailored to this exact pattern. Endings like IN often mark word families—helpful to confirm tense or morphology. For example: abstain, acrasin, acyloin.

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198 words
Word Definition Length Syllables
abstain72
acrasin73
acyloin73
albumin73
alkalin73
allicin73
aneurin73
aspirin73
atropin73
bargain72
bedouin72
benzoin72
bluefin72
boomkin72
botulin73
bumpkin72
butyrin73
caffein72
canakin73
canikin73
capelin73
captain72
carabin73
carotin73
ceratin73
certain72
chagrin72
chitlin72
chlorin72
cinerin73
cipolin73
coalbin72
colicin73
complin72
conjoin72
contain72
cowskin72
creatin72
crocein72
cumarin73
curtain72
cycasin73
cystein72
dauphin72
destain72
detrain72
dextrin72
digoxin73
disdain72
disjoin72
distain72
doeskin72
dolphin72
drumlin72
duckpin72
dustbin72
eiswein72
elastin73
enchain72
engrain72
entrain72
erepsin73
explain72
fibroin72
finikin73
fluorin72
folacin73
foxskin72
fuchsin72
gallein72
gastrin72
gelatin73
gherkin72
gliadin72
glonoin72
graplin72
gremlin72
griffin72
griskin72
hairpin72
headpin72
hematin73
heparin73
hirudin73
hoatzin72
hordein72
indamin73
indulin73
ingrain72
inhibin73
insulin73
isospin73
jacobin73
jalapin73
javelin73
keratin73
khamsin72
kidskin72
kinetin73
kingpin72
kipskin72
kremlin72
ladykin73
lambkin72
lanolin73
legumin73
levulin73
ligroin72
limpkin72
lobefin73
lupulin73
manakin73
manikin73
maudlin72
maximin73
melanin73
minikin73
miscoin72
misjoin72
mislain72
morphin72
mueddin72
muezzin72
mullein72
murrain72
narcein72
nicotin73
ninepin73
nuclein72
oestrin72
oilskin72
opsonin73
ouabain72
outgain72
outgrin72
outlain72
paladin73
penguin72
pertain72
picolin73
pigskin72
plasmin72
pocosin73
protein72
ptomain72
ptyalin72
pumpkin72
purloin72
pushpin72
quassin72
quintin72
ramekin73
ravelin73
rebegin73
redskin72
refrain72
relaxin73
retrain72
salicin73
saponin73
savarin73
sculpin72
sericin73
sextain72
sirloin72
smidgin72
solanin73
spongin72
stearin72
suberin73
subjoin72
sustain72
taborin73
tamarin73
terrain72
theelin72
therein72
thiamin72
thiazin72
thionin72
tolidin73
topspin72
triazin72
trypsin72
tubulin73
tylosin73
unchain72
vervain72
villain72
villein72
vitamin73
vitrain72
volutin73
wherein72
woodbin72
xanthin72
xylidin73
zecchin72

FAQs

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

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