Base Difficulty

Base difficulty: Level 13 edit

Level distribution for conjunction (conjunction_other): 6: 1 9: 5 10: 2 11: 2 13: 5

Per-Language Difficulty Overrides

No difficulty overrides set. The base difficulty level will be used for all languages.

Add Difficulty Override
-1 to exclude, 1-1299 for level
Frequency and Tier Signals
Combined Frequency Rank: — (run python -m storage.admin --calc-ranks to populate)
Tier Signals
Source Tier Rank used
cambridge_yle Flyers (3 of 3) 1200

Rank used = synthetic rank this tier contributes to the combined frequency rank (lower = more common).

Corpus Frequency
Corpus Freq (per M) Best form Share Zipf rank Forms
19th_books 425.94 89 31% 289 downrated 1
20th_books 440.30 85 31% 276 downrated 1
wiki_math 154.26 274 31% 890 downrated 1
wiki_geography 619.99 39 31% 127 downrated 1
wiki_biology 351.62 83 31% 270 downrated 1
wiki_modern_life 359.38 72 31% 234 downrated 1
wiki_arts 505.13 56 31% 182 downrated 1
wiki_society 403.81 61 31% 198 downrated 1
wiki_linguistics 368.28 90 31% 292 downrated 1
wiki_physical_science 285.64 100 31% 325 downrated 1
wiki_history 972.62 28 31% 91 downrated 1
early_modern_science 335.57 99 31% 322 downrated 1
religious_translated 382.19 104 31% 338 downrated 1
cooking 316.20 157 31% 510 downrated 1
legal_scotus 310.56 101 31% 328 downrated 1
eu_parliament_debates 160.07 238 31% 774 downrated 1
openstax_science 253.86 112 31% 364 downrated 1
openstax_society 322.31 97 31% 315 downrated 1
wpa_life_histories 595.95 72 31% 234 downrated 1

Best form = the single best-ranked form in the corpus, share-blind — how the spelling itself ranked. Share = how much of that spelling belongs to this lemma, when several senses compete for it. Zipf rank = all the forms combined (variant spellings included), each scaled by its share, and what feeds the combined frequency rank. Combining forms improves on the best form, but a share below 100% pushes the other way and usually wins: a sense holding a small slice of a common spelling is a rare word, so its rank lands downrated below the best form — and once it falls past what the corpus can support it is capped at the rank an unlisted word would get.