17-Letter Words Starting With O
Looking for seventeen-letter words that start with O? There are 40 of them in the ENABLE dictionary, and every one is on this page. The most common, like OTOLARYNGOLOGISTS, OPPORTUNISTICALLY, ORTHOGONALIZATION, sit right at the top.
Unlike alphabetical lists that bury likely answers in the middle, this list is sorted by how often each word appears in everyday English. Scan the first rows for probable answers; dig deeper for rare, high-scoring plays.
40 words (the small number on each word is its Scrabble point value)
- otolaryngologists 22
- opportunistically 26
- orthogonalization 30
- objectionableness 30
- obstructivenesses 24
- oceanographically 30
- odoriferousnesses 21
- onomatopoetically 26
- openheartednesses 23
- openmouthednesses 25
- opinionatednesses 20
- opprobriousnesses 23
- organophosphorous 28
- orthopsychiatries 30
- orthopsychiatrist 30
- otolaryngological 24
- overambitiousness 24
- overcommercialize 37
- overcommunicating 29
- overcommunication 28
- overcompensations 26
- overconcentration 24
- overconscientious 24
- overembellishment 29
- overexaggerations 29
- overexploitations 29
- overextrapolation 29
- overfamiliarities 25
- overfertilization 32
- overindustrialize 30
- overorchestrating 26
- overprescriptions 26
- overproportionate 24
- overproportioning 25
- oversensitiveness 23
- oversensitivities 23
- oversophisticated 28
- oversubscriptions 26
- overzealousnesses 29
- ovoviviparousness 28
Points use Scrabble US letter values
Frequently asked questions
How many seventeen-letter words are there that start with O?
There are 40 seventeen-letter words that start with O in the ENABLE dictionary. The most common are OTOLARYNGOLOGISTS, OPPORTUNISTICALLY, ORTHOGONALIZATION.
What are common seventeen-letter words that start with O?
OTOLARYNGOLOGISTS, OPPORTUNISTICALLY, ORTHOGONALIZATION, OBJECTIONABLENESS, OBSTRUCTIVENESSES are the most frequently used. The full list of 40 words on this page is sorted by everyday frequency, so the common ones come first.
Can I play these words in Scrabble?
Not on a standard board: Scrabble boards are 15 squares wide, so seventeen-letter words physically cannot be played. These words come from the ENABLE dictionary and shine in crosswords, spelling bees, and vocabulary study.
Starting with O in other lengths
- 2-Letter Words Starting With O
- 3-Letter Words Starting With O
- 4-Letter Words Starting With O
- 5-Letter Words Starting With O
- 6-Letter Words Starting With O
- 7-Letter Words Starting With O
- 8-Letter Words Starting With O
- 9-Letter Words Starting With O
- 10-Letter Words Starting With O
- 11-Letter Words Starting With O
- 12-Letter Words Starting With O
- 13-Letter Words Starting With O
- 14-Letter Words Starting With O
- 15-Letter Words Starting With O
- 16-Letter Words Starting With O
- 18-Letter Words Starting With O
- 19-Letter Words Starting With O
- 20-Letter Words Starting With O