Base Difficulty

Base difficulty: Level 22 edit

Level distribution for adjective (sequence): 22: 7 225: 1 1120: 10

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 376.41 234 80% 292 downrated 1
20th_books 373.33 248 80% 310 downrated 1
wiki_math 144.24 743 80% 929 downrated 1
wiki_geography 161.83 595 80% 744 downrated 1
wiki_biology 97.62 1133 80% 1416 downrated 1
wiki_modern_life 175.54 554 80% 692 downrated 1
wiki_arts 191.58 480 80% 600 downrated 1
wiki_society 100.98 1034 80% 1292 downrated 1
wiki_linguistics 115.87 861 80% 1076 downrated 1
wiki_physical_science 116.38 998 80% 1248 downrated 1
wiki_history 308.87 247 80% 309 downrated 1
early_modern_science 278.04 309 80% 386 downrated 1
religious_translated 165.72 513 80% 641 downrated 1
cooking 180.38 606 80% 758 downrated 1
legal_scotus 92.60 1113 80% 1391 downrated 1
eu_parliament_debates 296.33 330 80% 412 downrated 1
openstax_science 269.13 376 80% 470 downrated 1
openstax_society 201.76 537 80% 671 downrated 1
wpa_life_histories 528.26 182 80% 227 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.