Countable Nouns with OPT
Browse 192 verified English countable nouns containing the letters OPT, including Option, Adoption, Optional, Optimization, Helicopter, Optics and Optimum. Filter these count nouns with singular and plural forms by word length below, or review singular and plural count rules in our noun grammar guide.
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Starts with A
11 words adoption
adopter
adoptee
archaeopteryx
adoptionist
adoptant
adoptian
anisopteran
anomalopteryx
angiopteris
acanthopterygian
Starts with B
3 words bioptic
botryopterid
botryopteris
Starts with C
24 words copter
cooption
cooptation
coleopteran
coleoptile
chiropteran
coleopterist
caryopteris
crossopterygian
coleopteron
chorioptes
catoptrophorus
chiropter
chaetopterus
coleopter
chiropterygium
cephalopterus
ceratopteris
chiropterygian
chondropterygian
cynopterus
caulopteris
chromatoptometer
coleopteroid
Starts with D
9 words droptop
diopter
dioptase
dermopteran
dictyopteran
dioptometer
dictyopteris
dicranopteris
dacryocystoptosis
Starts with E
16 words epopt
entoptoscope
endopterygote
ephemeropteran
exopterygote
eusthenopteron
epoptist
embiopteran
entoptoscopy
epiopticon
elaeoptene
entopterygoid
esophagoptosis
elytroptosis
eleoptene
eremopteris
Starts with F
1 words floptical
Starts with G
2 words gyrocopter
gastrocoloptosis
Starts with H
11 words helicopter
hooptie
hoptoad
hexacopter
hymenopteran
horopter
hoptree
homopteran
heteropteran
hymenopteron
hymenopterologist
Starts with I
3 words ichthyopterygian
isopteran
ichthyopterygium
Starts with L
4 words lepidopteran
lepidopterologist
lepidopteron
litoptern
Starts with M
17 words moptop
multicopter
megachiropteran
microlepidoptera
microlepidopterist
monopteros
microhymenoptera
microlepidopteran
monoptote
mecopteran
macrochiropteran
monopteron
microchiropteran
malacopterygian
micropteryx
microhymenopteron
microlepidopteron
Starts with N
5 words nephroptosis
neuropteran
neuropterist
neuropteron
nephrocoloptosis
Starts with O
24 words option
optional
optimization
optics
optimum
optimist
optic
optimizer
optician
optometrist
optionality
ornithopter
optative
optionee
octocopter
optant
opter
optime
optocoupler
optimates
orthoptist
orthopteran
optimate
optometer
Starts with P
16 words panopticon
proptosis
presbyoptic
preoption
psocopteran
phyllopteryx
protocoleopteran
protohymenopteron
protohymenopteran
petrocoptis
protelytropteran
protopteridophyte
plecopteran
pseudoneuropteran
protocoleopteron
protelytropteron
Starts with Q
1 words quadcopter
Starts with R
1 words readoption
Starts with S
17 words synoptic
suboptimum
stereopticon
soroptimist
synoptics
synoptist
sarcoptes
sauropterygian
sarcopterygian
scoptophobia
skoptsy
suboptimization
struthiopteris
sciopticon
scioptic
stearoptene
solanopteris
Starts with T
3 words trichopteran
thysanopteran
trichopterist
Starts with V
1 words visceroptosis
Starts with X
2 words xenopterygian
xenopteran
Starts with Z
4 words zygopteran
zygopteron
zygopteris
zygopterid