40 words
17-letter words starting with O
40 words.
- overcommercialize37
- overfertilization32
- objectionableness30
- oceanographically30
- orthogonalization30
- orthopsychiatries30
- orthopsychiatrist30
- overindustrialize30
- overcommunicating29
- overembellishment29
- overexaggerations29
- overexploitations29
- overextrapolation29
- overzealousnesses29
- organophosphorous28
- overcommunication28
- oversophisticated28
- ovoviviparousness28
- onomatopoetically26
- opportunistically26
- overcompensations26
- overorchestrating26
- overprescriptions26
- oversubscriptions26
- openmouthednesses25
- overfamiliarities25
- overproportioning25
- obstructivenesses24
- otolaryngological24
- overambitiousness24
- overconcentration24
- overconscientious24
- overproportionate24
- openheartednesses23
- opprobriousnesses23
- oversensitiveness23
- oversensitivities23
- otolaryngologists22
- odoriferousnesses21
- opinionatednesses20
How this list is built
- Every word here comes from ENABLE, a lexicon released to the public domain — 172,823 words. It is the list this site can legally publish in full, and it is stated openly rather than implied.
- The tournament lists — TWL/OWL in North America, Collins/SOWPODS elsewhere — are copyrighted compilations. They are not used here and not merged in. A small number of words will therefore differ from what a given game accepts.
- Scores use the standard tile values (A=1 … Q=10, Z=10) and ignore board bonuses, which depend on where you place the word, not on the word itself.
- Lists are ordered by score, then alphabetically — the order that is useful when you are choosing a play, rather than alphabetical for its own sake.
SOURCE·ENABLE (Enhanced North American Benchmark Lexicon)·Public domain. 172,823 words. Tournament lists (TWL, Collins) are copyrighted and not used.·REVIEWED AUG 2026
SOURCE·ENABLE public-domain lexicon (172,823 words)·lists and scores computed from the lexicon, see method·REVIEWED AUG 2026
