Base Difficulty

Base difficulty: Level 1399 edit

Level distribution for verb (creation_action): 7: 1 10: 1 205: 1 260: 1 295: 1 330: 3 380: 1 400: 1 415: 1 455: 1 470: 12 475: 7 485: 1 1000: 1 1010: 1 1040: 1 1070: 1 1110: 2 1120: 1 1399: 31

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: 1045 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cefr C1 (5 of 6) 12000

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 98.96 354 20% 962 downrated 4
20th_books 67.21 585 20% 1276 downrated 5
wiki_math 106.99 1197 50% 1037 3
wiki_geography 69.08 515 20% 1850 downrated 2
wiki_biology 150.74 231 20% 763 downrated 3
wiki_modern_life 72.90 609 20% 1843 downrated 2
wiki_arts 169.03 526 20% 753 downrated 4
wiki_society 127.65 420 20% 986 downrated 3
wiki_linguistics 153.76 234 20% 802 downrated 3
wiki_physical_science 110.74 305 20% 1187 downrated 2
wiki_history 117.95 764 20% 1101 downrated 2
early_modern_science 187.19 167 20% 555 downrated 4
religious_translated 104.10 310 20% 1016 downrated 3
cooking 19.38 1175 20% 5200 capped 1
legal_scotus 383.01 267 20% 302 downrated 7
eu_parliament_debates 277.79 260 20% 359 downrated 8
openstax_science 132.45 305 20% 925 downrated 4
openstax_society 124.91 894 20% 1002 downrated 5
wpa_life_histories 75.12 457 20% 1206 downrated 4

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.