Countable Nouns Starting with OP and Containing E

Browse 88 valid English countable nouns starting with OP and containing E, from Open, Operation, Opening, Opponent, Operator, Opera and Oppression to rarer terms. Check definitions and spelling below, or visit our noun grammar guide to review singular and plural count rules.

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Starts with OPA
4 words
opaque
opaline
opacifier
opaleye
Starts with OPC
1 words
opcode
Starts with OPE
24 words
open
operation
opening
operator
opera
opener
operative
operetta
operand
operant
opencast
operon
operculum
openwork
openside
operagoer
operatorship
opercular
operationalist
operativity
operationist
operettist
operosity
opercule
Starts with OPH
23 words
ophthalmoscope
ophiolite
ophthalmoplegia
ophidiophile
ophite
ophidiophobe
ophthalmometer
ophicleide
ophthalmometry
ophites
ophicalcite
ophthalmodynamometer
ophthalmostatometer
ophthalmothermometer
ophthalmencephalon
ophiolater
ophthalmoneuritis
ophthalmotonometer
ophthalmotropometer
ophthalmodiastimeter
ophthalmorrhexis
ophthalmophlebotomy
ophthalmoleucoscope
Starts with OPI
7 words
opiate
opifex
opisometer
opisthopulmonate
opisthobranchiate
opificer
opisthocoelian
Starts with OPO
2 words
opodeldoc
oporice
Starts with OPP
10 words
opposite
opponent
oppression
oppressor
opposer
opponency
opponens
oppugner
oppilative
oppigneration
Starts with OPS
1 words
opsiometer
Starts with OPT
12 words
optimizer
optometrist
optative
optionee
opter
optime
optocoupler
optimates
optimate
optometer
optophone
optomeninx
Starts with OPU
1 words
opuscule

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