Words Starting With OP

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18 letter words
OPHTHALMOLOGICALLY​34
OPINIONATIVENESSES​23
17 letter words (5 words)
OPENHEARTEDNESSES​23
OPENMOUTHEDNESSES​25
OPINIONATEDNESSES​20
OPPORTUNISTICALLY​26
OPPROBRIOUSNESSES​23
16 letter words (7 words)
OPENHANDEDNESSES​23
OPERATIONALISTIC​20
OPHTHALMOLOGICAL​29
OPHTHALMOLOGISTS​27
OPHTHALMOSCOPIES​30
OPINIONATIVENESS​21
OPPRESSIVENESSES​23
15 letter words (22 words)
OPTOELECTRONICS​21
OPHTHALMOLOGIST​26
OPHTHALMOPLEGIA​28
OPHTHALMOSCOPES​29
OPENHEARTEDNESS​21
OPENMOUTHEDNESS​23
OPERATIONALISMS​19
OPERATIONALISTS​17
OPERATIVENESSES​20
OPHTHALMOLOGIES​26
OPHTHALMOMETERS​27
OPHTHALMOPHOBIA​32
OPHTHALMOSCOPIC​31
OPINIONATEDNESS​18
OPISTHOGNATHISM​26
OPISTHOGNATHOUS​24
OPISTHOGRAPHIES​26
OPPORTUNENESSES​19
OPPROBRIOUSNESS​21
OPSONIFICATIONS​22
14 letter words (28 words)
OPTOELECTRONIC​20
OPTIMISTICALLY​23
OPHTHALMOLOGIC​27
OPHTHALMOSCOPE​28
OPHTHALMOSCOPY​31
OPENHANDEDNESS​21
OPERATIONALISM​18
OPERATIONALIST​16
OPHTHALMITISES​24
OPHTHALMOMETER​26
OPHTHALMOMETRY​29
OPINIONATIVELY​22
OPISTHOBRANCHS​26
OPISTHOCOELIAN​21
OPISTHOCOELOUS​21
OPISTHOGLOSSAL​20
OPISTHOGRAPHIC​27
OPISTHOTONOSES​19
OPPIGNERATIONS​19
OPPIGNORATIONS​19
13 letter words (32 words)
OPPORTUNITIES​17
OPHTHALMOLOGY​27
OPTIMIZATIONS​26
OPPORTUNISTIC​19
OPERATIONALLY​18
OPTIMISATIONS​17
OPENABILITIES​17
OPENHEARTEDLY​22
OPENMOUTHEDLY​24
OPERABILITIES​17
OPERATIONISMS​17
OPERATIONISTS​15
OPERATIVENESS​18
OPERATIVITIES​18
OPEROSENESSES​15
OPHIOMORPHOUS​25
OPHIOPHILISTS​23
OPINIONATEDLY​19
OPISTHOBRANCH​25
OPISTHOGRAPHS​24
12 letter words (53 words)
OPTIMIZATION​25
OPTIMISATION​16
OPTOMETRISTS​16
OPPOSITIONAL​16
OPPORTUNISTS​16
OPPRESSIVELY​22
OPALESCENCES​18
OPALESCENTLY​19
OPAQUENESSES​23
OPEIDOSCOPES​19
OPENHANDEDLY​22
OPERATICALLY​19
OPERATIONISM​16
OPERATIONIST​14
OPERATORLESS​14
OPHICALCITES​21
OPHIDIARIUMS​20
OPHIOLATRIES​17
OPHIOLATROUS​17
OPHIOLOGICAL​20
11 letter words (57 words)
OPPORTUNITY​18
OPERATIONAL​13
OPINIONATED​14
OPTOMETRIST​15
OPERABILITY​18
OPERATIVELY​19
OPPORTUNISM​17
OPPOSITIONS​15
OPPORTUNIST​15
OPTIONALITY​16
OPPRESSIONS​15
OPALESCENCE​17
OPPORTUNELY​18
OPPROBRIOUS​17
OPTOKINETIC​19
OPEIDOSCOPE​18
OPENABILITY​18
OPENHEARTED​17
OPENMOUTHED​19
OPERAGOINGS​15
10 letter words (76 words)
OPERATIONS​12
OPPOSITION​14
OPTIMISTIC​16
OPTIMIZING​24
OPTIONALLY​15
OPPRESSION​14
OPERATIVES​15
OPHTHALMIC​22
OPPRESSIVE​17
OPTIMALITY​17
OPTIMISING​15
OPTIMIZERS​23
OPTOMETRIC​16
OPPRESSORS​14
OPALESCENT​14
OPPRESSING​15
OPPOSITELY​17
OPPROBRIUM​18
OPTIMISERS​14
OPAQUENESS​21
9 letter words (83 words)
OPERATING​12
OPERATION​11
OPERATORS​11
OPPONENTS​13
OPTIMIZED​23
OPERATIVE​14
OPTIMIZER​22
OPPRESSED​14
OPTIMISED​14
OPTOMETRY​16
OPTICIANS​13
OPTICALLY​16
OPTIMALLY​16
OPPOSITES​13
OPTIMIZES​22
OPPORTUNE​13
OPTRONICS​13
OPTIMISTS​13
OPPRESSOR​13
OPTIMISER​13
8 letter words (75 words)
OPTIONAL​10
OPINIONS​10
OPERATOR​10
OPERATED​11
OPPOSITE​12
OPERATES​10
OPENINGS​11
OPPONENT​12
OPTIMIZE​21
OPPOSING​13
OPENNESS​10
OPTIMISM​14
OPTIMISE​12
OPERANDS​11
OPTIMIST​12
OPERABLE​12
OPERATIC​12
OPTICIAN​12
OPERETTA​10
OPULENCE​12
7 letter words (44 words)
OPTIONS​9
OPINION​9
OPENING​10
OPTICAL​11
OPERATE​9
OPTIMAL​11
OPPOSED​12
OPTIMUM​13
OPPOSES​11
OPENERS​9
OPACITY​14
OPERAND​10
OPULENT​9
OPIATES​9
OPIOIDS​10
OPPRESS​11
OPCODES​12
OPOSSUM​11
OPERANT​9
OPUNTIA​9
6 letter words (27 words)
OPTION​8
OPENED​9
OPTICS​10
OPPOSE​10
OPENER​8
OPENLY​11
OPAQUE​17
OPTIMA​10
OPERAS​8
OPIOID​9
OPTING​9
OPCODE​11
OPIATE​8
OPERON​8
OPINED​9
OPINES​8
OPULUS​8
OPALED​9
OPEPES​10
OPHITE​11
5 letter words (13 words)
OPERA​7
OPENS​7
OPTIC​9
OPTED​8
OPIUM​9
OPALS​7
OPINE​7
OPING​8
OPSIN​7
OPPOS​9
OPAHS​10
OPEPE​9
OPTER​7
4 letter words (9 words)
OPEN​6
OPAL​6
OPUS​6
OPTS​6
OPED​7
OPES​6
OPPO​8
OPAS​6
OPAH​9
3 letter words (4 words)
OPT​5
OPS​5
OPA​5
OPE​5
2 letter words
OP​4


On this page, you will find a complete list of all of the words that start with the letters OP. There are 538 in total of all lengths.

On average, a word from this list is worth 15.7 points in a game of Scrabble or Words With Friends.

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The largest score a player can rack up from this list is 34 points with the word: OPHTHALMOLOGICALLY.

If none of the words that begin with the letters OP work for you, try taking a look at our similar lists: words ending in OP, words with OP and words starting with different letters. If you are playing Wordle you can narrow the list down to the 5-letter words starting with OP.

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