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: 1501 (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 8.70 7141 100% 7141 1
20th_books 8.41 7056 100% 7056 1
wiki_math 457.21 795 100% 258 6
wiki_geography 187.24 682 100% 682 1
wiki_biology 26.50 4386 100% 4386 1
wiki_modern_life 227.02 671 100% 577 2
wiki_arts 171.18 945 100% 777 2
wiki_society 116.59 2439 100% 1160 3
wiki_linguistics 155.89 1232 100% 808 2
wiki_physical_science 93.95 2626 100% 1431 2
wiki_history 74.13 1844 100% 1844 1
early_modern_science 86.15 1687 100% 1254 2
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 30.96 6615 100% 1987 4
eu_parliament_debates 35.15 3670 100% 2034 2
openstax_science 66.87 3244 100% 1752 2
openstax_society 97.06 2228 100% 1340 2
wpa_life_histories 13.27 4904 100% 4904 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.