47 words
18-letter words starting with S
47 words.
- semiquantitatively35
- spectroheliography34
- supercivilizations34
- sociopsychological33
- spectrographically33
- sphygmomanometries33
- submicroscopically33
- subcategorizations32
- semiconservatively31
- spectroheliographs31
- spectrophotometric31
- stereophotographic31
- spectrofluorometry30
- stereospecifically30
- stoichiometrically30
- sentimentalization29
- somnambulistically29
- spectrohelioscopes29
- spectrophotometers29
- structuralizations29
- semiprofessionally28
- superminicomputers28
- supersophisticated28
- sedimentologically27
- spectrofluorimeter27
- spectrofluorometer27
- subclassifications27
- semipermeabilities26
- shortsightednesses26
- simplemindednesses26
- semidomestications25
- superconglomerates25
- subconsciousnesses24
- satisfactorinesses23
- soporiferousnesses23
- superadministrator23
- superintelligences23
- supersensitivities23
- stoutheartednesses22
- substitutabilities22
- superciliousnesses22
- superintellectuals22
- sacrilegiousnesses21
- simultaneousnesses20
- supernaturalnesses20
- supranationalities20
- stereoregularities19
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
