Countable Nouns Ending in ON and Containing OO

Explore 134 verified English countable nouns ending in ON and containing OO, including Afternoon, Noon, Spoon, Balloon, Cartoon, Maroon and Honeymoon. Browse these count nouns with singular and plural forms below, or review singular and plural count rules in our noun grammar guide.

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Starts with A
1 words
afternoon
Starts with B
12 words
balloon
boon
buffoon
baboon
bassoon
babymoon
barracoon
bridoon
bryozoon
bosthoon
boerboon
bradoon
Starts with C
13 words
cartoon
cocoon
coon
croon
cooption
coopetition
choon
cooptation
contrabassoon
cardoon
cacoon
coolamon
chemiloon
Starts with D
8 words
dragoon
doubloon
dessertspoon
dahoon
ducatoon
diplozoon
dermatozoon
dermoossification
Starts with E
9 words
espantoon
epiploon
entozoon
epoophoron
enterozoon
endozoon
epizoon
eozoon
ectozoon
Starts with F
3 words
festoon
forenoon
frigatoon
Starts with G
7 words
goon
gossoon
gaboon
galloon
gadroon
gambroon
gombroon
Starts with H
7 words
honeymoon
harpoon
half-moon
hoon
heroon
hydrozoon
hematozoon
Starts with J
1 words
jargoon
Starts with K
1 words
kroon
Starts with L
4 words
lagoon
loon
lampoon
lardoon
Starts with M
11 words
moon
maroon
monsoon
midafternoon
macaroon
minimoon
musketoon
matzoon
metazoon
melocotoon
midnoon
Starts with N
1 words
noon
Starts with O
2 words
octoroon
oophoron
Starts with P
14 words
platoon
pontoon
poon
patroon
pantaloon
poltroon
pickaroon
picaroon
photooxidation
puccoon
puftaloon
polyzoon
pultoon
parazoon
Starts with Q
1 words
quadroon
Starts with R
5 words
raccoon
ratoon
rockoon
roon
rigadoon
Starts with S
21 words
spoon
saloon
swoon
supermoon
spittoon
soupspoon
saskatoon
spermatozoon
simoon
saltspoon
spontoon
seroon
shalloon
sporozoon
spadroon
scandaroon
saprozoon
sirpoon
sashoon
shagroon
saccoon
Starts with T
8 words
teaspoon
tablespoon
tycoon
toon
typhoon
troodon
testoon
tenoroon
Starts with V
1 words
vinegarroon
Starts with W
1 words
woodpigeon
Starts with Z
3 words
zooplankton
zoon
zoopantheon

•Browse Countable Nouns by Letter (A to Z)

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