Base Difficulty

Base difficulty: Level 18 edit

Level distribution for adjective (quality): 15: 5 16: 5 18: 23 19: 43 20: 35 21: 1 36: 5 37: 5 38: 5 39: 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, 1-100 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 553.18 180 80% 216 downrated 1
20th_books 707.00 152 80% 182 downrated 1
wiki_math 694.91 149 80% 180 downrated 1
wiki_geography 177.54 527 80% 661 downrated 1
wiki_biology 156.52 661 80% 832 downrated 1
wiki_modern_life 229.21 397 80% 505 downrated 1
wiki_arts 203.25 450 80% 567 downrated 1
wiki_society 417.44 187 80% 234 downrated 1
wiki_linguistics 260.04 381 80% 476 downrated 1
wiki_physical_science 177.50 634 80% 792 downrated 1
wiki_history 224.36 376 80% 470 downrated 1
early_modern_science 210.22 411 80% 514 downrated 1
religious_translated 413.67 231 80% 289 downrated 1
cooking 200.32 558 80% 698 downrated 1
legal_scotus 998.66 81 80% 101 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.