Words That Start With OP

There are over 585 words that begin with OP in English. From 2-letter words to 15-letter entries, find OP-words grouped and sortable by length below, all valid in Scrabble, Wordle, and Words With Friends. You can also see five letter words starting with OP.

2 letter OP-words icon
1

2-Letter Words Starting With OP

Short high-frequency OP-words:

op

3 letter OP-words icon
4

3-Letter Words Starting With OP

Short high-frequency OP-words:

opa

ope

ops

opt

See all 3-letter OP-words
4 letter OP-words icon
10

4-Letter Words Starting With OP

Common 4-letter OP-words:

open

opah

opal

opas

oped

opes

opex

oppo

opts

opus

See all 4-letter OP-words
5 letter OP-words icon
13

5-Letter Words Starting With OP

Common 5-letter OP-words:

opera

opens

opium

opahs

opals

opepe

opine

oping

oppos

opsin

opted

opter

optic

See all 5-letter OP-words
6 letter OP-words icon
30

6-Letter Words Starting With OP

Common 6-letter OP-words:

opened

option

openly

operas

oppose

opaled

opanci

opanka

opcode

opener

operon

opiate

opined

opines

opiums

oppida

opsins

optant

optics

optima

See all 6-letter OP-words
7 letter OP-words icon
46

7-Letter Words Starting With OP

Common 7-letter OP-words:

opening

opposed

operate

opinion

optical

options

optimal

opacity

opacous

opaqued

openers

operons

opgefok

ophitic

opiated

opining

oporice

oppress

opsonic

optimes

See all 7-letter OP-words
8 letter OP-words icon
78

8-Letter Words Starting With OP

Common 8-letter OP-words:

opposite

operated

operator

operates

opponent

opposing

opinions

optional

opalized

openness

openside

ophiurid

opiumism

oporices

oppilate

optative

optimate

optionee

opuntias

opuscles

See all 8-letter OP-words
9 letter OP-words icon
84

9-Letter Words Starting With OP

Common 9-letter OP-words:

operating

operation

opponents

operators

opacifier

opacifies

operative

operceles

operettas

ophiolite

ophiuroid

oppilates

opposably

oppressor

opsonized

optimates

optimised

optimisms

optometry

opuscules

See all 9-letter OP-words
10 letter OP-words icon
81

10-Letter Words Starting With OP

Common 10-letter OP-words:

operations

opposition

opacifiers

opalescing

openhanded

operagoers

operculate

ophicleide

ophiolatry

opinionist

opopanaxes

opotherapy

opposingly

oppressive

oppressors

opsomanias

opsonified

opsonising

optimalize

optimistic

See all 10-letter OP-words
11 letter OP-words icon
62

11-Letter Words Starting With OP

Common 11-letter OP-words:

opportunity

operational

opalescence

openability

operagoings

ophicalcite

ophidiarium

ophiologist

ophiomorphs

ophthalmias

opinionised

opinionises

opinionizes

opsimathies

optimalised

optimalises

optimalizes

optokinetic

optologists

optometrist

See all 11-letter OP-words
12 letter OP-words icon
61

12-Letter Words Starting With OP

Common 12-letter OP-words:

optimization

opalescences

opeidoscopes

openhandedly

operationist

operatorless

operatorship

ophidiariums

ophiolatrous

ophiological

ophthalmists

ophthalmitis

opinionately

opinionators

opisthograph

opisthotonos

opotherapies

oppositeness

optimalising

optimalities

See all 12-letter OP-words
13 letter OP-words icon
38

13-Letter Words Starting With OP

Common 13-letter OP-words:

opportunities

openabilities

openheartedly

operationally

operationisms

operationists

operosenesses

ophiophilists

opinionatedly

opisthography

opisthosomata

oppignerating

oppignorating

oppignoration

opportuneness

opportunistic

oppositionism

opprobriously

opsonizations

optionalities

See all 13-letter OP-words
14 letter OP-words icon
35

14-Letter Words Starting With OP

Common 14-letter OP-words:

opacifications

openmindedness

operationalism

ophidiophobics

ophthalmitises

ophthalmologic

ophthalmoscope

ophthalmoscopy

opinionatively

opisthocoelian

opisthoglossal

opisthographic

opposabilities

oppositenesses

oppositionisms

oppositionists

oppositionless

opsonification

optimalization

optimistically

See all 14-letter OP-words
15 letter OP-words icon
28

15-Letter Words Starting With OP

Common 15-letter OP-words:

openmouthedness

operationalised

operationalists

operationalized

operationalizes

operativenesses

ophthalmologies

ophthalmometers

ophthalmophobia

ophthalmoplegia

ophthalmoscopes

ophthalmoscopic

opinionatedness

opisthognathism

opisthognathous

opportunenesses

opprobriousness

opsonifications

optimalizations

optoelectronics

See all 15-letter OP-words

585 Common Words Starting with OP

Most Common Length
9
(84 words)
Avg Scrabble Score
15.9
(out of 34)
Most Common Ending
s
(41%)

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What is the highest scoring word in Scrabble that starts with OP?

34 Points

The highest scoring word in Scrabble that starts with OP is ophthalmologically with a total of 34 points.

O 1
P 3
H 4
T 1
H 4
A 1
L 1
M 3
O 1
L 1
O 1
G 2
I 1
C 3
A 1
L 1
L 1
Y 4
adverb 1. With regard to ophthalmology; by means of ophthalmology.

Words that begin with OP are commonly used for word games like Scrabble and Words with Friends. This list will help you to find the top scoring words to beat the opponent. You can also find a list of all words that end in OP and words with OP. Try our five letter words starting with OP page if you’re playing Wordle-like games or use the New York Times Wordle Solver for finding the NYT Wordle daily answer.

FAQ Words That Start With OP

  • How many words starting with OP are in the English dictionary?

    There are 585 words in the English dictionary that start with OP, and most of them are 9 letters long (84 words of that length).

  • What's the longest word starting with OP?

    The longest word starting with OP is "ophthalmologically" at 18 letters long. If you're looking for a more everyday word, "opportunities" is the longest common word starting with OP.

  • Are there any rare words starting with OP worth more in Scrabble?

    Yes. Uncommon words like "optimalization", "operationalize", "optimization", "opsonization" start with OP and can score big thanks to their unusual letters. "optimalization" is worth 27 points in Scrabble before any bonus tiles.

  • What are the most common words starting with OP?

    Most words starting with OP are 9 letters long, including everyday words like "operating", "operation", "opponents", "operators", "opacifier".

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