Base Difficulty

Base difficulty: Level 220 edit

Level distribution for verb (existence): 10: 1 23: 1 135: 1 170: 1 179: 1 214: 8 215: 1 220: 1 329: 1 415: 1 475: 1

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

No lemma-tier assignment found yet.

Corpus Frequency
Corpus Freq (per M) Best form Share Zipf rank Forms
19th_books 241.15 124 20% 500 downrated 2
20th_books 197.23 148 20% 631 downrated 2
wiki_math 36.78 728 20% 3640 downrated 1
wiki_geography 139.39 256 20% 806 downrated 2
wiki_biology 47.24 528 20% 2640 downrated 1
wiki_modern_life 47.60 499 20% 2495 downrated 1
wiki_arts 96.43 332 20% 1146 downrated 2
wiki_society 70.54 520 20% 1678 downrated 2
wiki_linguistics 63.71 385 20% 1925 downrated 1
wiki_physical_science 36.28 793 20% 3965 downrated 1
wiki_history 201.81 173 20% 520 downrated 2
early_modern_science 101.24 205 20% 1025 downrated 1
religious_translated 66.37 330 20% 1650 downrated 1
cooking 63.26 476 20% 2380 downrated 1
legal_scotus 33.38 1011 20% 3018 downrated 2
eu_parliament_debates 137.56 184 20% 920 downrated 1
openstax_science 34.20 838 20% 4190 downrated 1
openstax_society 90.84 502 20% 1403 downrated 2
wpa_life_histories 163.53 194 20% 673 downrated 2

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.