21 words
18-letter words starting with R
21 words.
- rhabdomyosarcomata33
- rechromatographing32
- recrystallizations32
- rehospitalizations32
- revascularizations32
- rechromatographies31
- radiochromatograms29
- reinstitutionalize27
- renationalizations27
- reprehensibilities25
- roentgenologically25
- rambunctiousnesses24
- reconstructionisms24
- ribonucleoproteins24
- remunerativenesses23
- representationally23
- representativeness23
- representativities23
- radiosensitivities22
- reconstructionists22
- redistributionists21
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