3 Letter Countable Nouns Starting with O

Explore 38 verified English 3 letter countable nouns that start with O, including Oil, Odd, Ooh, Owl, Ore, Orb and Oar. 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 OA3 words
oar
oat
oaf
Starts with OB3 words
obe
obi
oba
Starts with OC
1 words
oca
Starts with OD3 words
odd
ode
oda
Starts with OF
1 words
off
Starts with OH
1 words
ohm
Starts with OI
2 words
oil
oik
Starts with OK
2 words
oke
oka
Starts with OL
1 words
olm
Starts with OM
1 words
oma
Starts with ON
2 words
one
ono
Starts with OO4 words
ooh
oof
oop
oom
Starts with OP
1 words
opa
Starts with OR5 words
ore
orb
orc
ord
ort
Starts with OS
1 words
ose
Starts with OT
1 words
oto
Starts with OU
2 words
out
oud
Starts with OW
2 words
owl
owo
Starts with OX
2 words
oxy
oxo

•Browse Countable Nouns by Letter (A to Z)

Select a starting letter to browse countable nouns
ABCDEFGHIJKLMNOPQRSTUVWXYZ
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