Base Difficulty

Base difficulty: Level 1399 edit

Level distribution for verb (change): 22: 4 28: 1 109: 1 140: 1 162: 2 194: 1 254: 1 255: 1 309: 2 311: 1 321: 16 410: 2 415: 2 475: 5 1040: 1 1090: 1 1399: 38

Per-Language Difficulty Overrides

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

Add Difficulty Override
-1 to exclude, 1-1399 for level
Frequency and Tier Signals
Combined Frequency Rank: 3370 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals

No lemma-tier assignment found yet.

Corpus Frequency
Corpus Freq (per M) Best form Share Zipf rank Forms
19th_books 9.02 2752 20% 8230 downrated 3
20th_books 6.73 3210 20% 11036 downrated 2
wiki_math 90.52 849 20% 1412 downrated 4
wiki_geography 73.10 366 20% 1651 downrated 2
wiki_biology 68.55 461 20% 1830 downrated 3
wiki_modern_life 61.57 1165 20% 2318 downrated 2
wiki_arts 27.89 964 20% 4820 downrated 1
wiki_society 36.36 855 20% 3623 downrated 2
wiki_linguistics 40.15 745 20% 3163 downrated 2
wiki_physical_science 93.65 757 20% 1442 downrated 4
wiki_history 28.50 921 20% 4605 downrated 1
early_modern_science 96.39 978 20% 1171 downrated 4
religious_translated 28.58 1117 20% 3368 downrated 3
cooking 30.19 1001 20% 3483 downrated 2
legal_scotus 14.73 2182 20% 6687 downrated 3
eu_parliament_debates 9.75 3111 20% 8349 downrated 2
openstax_science 83.07 972 20% 1513 downrated 5
openstax_society 45.43 1064 20% 2997 downrated 3
wpa_life_histories 8.10 3059 20% 8999 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.