76 words
16-letter words starting with O
76 words.
- oxyphenbutazones42
- overhomogenizing35
- overcapitalizing33
- overspecializing33
- oxytetracyclines33
- objectifications32
- orthopsychiatric31
- overcentralizing31
- ophthalmoscopies30
- orthographically30
- overexpectations30
- overgeneralizing30
- ophthalmological29
- organizationally29
- overachievements29
- overexaggerating29
- oligomerizations28
- overcommunicated28
- overcompensatory28
- overcomplicating28
- overexaggeration28
- overexploitation28
- overutilizations28
- objectlessnesses27
- obsequiousnesses27
- ophthalmologists27
- organophosphates27
- organophosphorus27
- overcommunicates27
- overconservative27
- overdevelopments27
- overembellishing27
- overcompensating26
- oligosaccharides25
- onomatopoeically25
- ornithologically25
- orthogenetically25
- overapplications25
- overcompensation25
- overconsumptions25
- overorchestrated25
- overprescription25
- oversubscription25
- oligodendrocytes24
- organoleptically24
- outdoorsmanships24
- overaccentuating24
- overconstructing24
- overcultivations24
- overenthusiastic24
- overorchestrates24
- overproportioned24
- openhandednesses23
- oppressivenesses23
- otherworldliness23
- overindebtedness23
- overspeculations23
- obstructionistic22
- overarticulating22
- opinionativeness21
- organomercurials21
- otolaryngologies21
- otolaryngologist21
- overelaborations21
- overstimulations21
- obstreperousness20
- oligodendroglial20
- oligodendroglias20
- oligonucleotides20
- operationalistic20
- osteoarthritides20
- outlandishnesses20
- overgenerosities20
- oleaginousnesses17
- outrageousnesses17
- ostentatiousness16
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
