Base Difficulty

Base difficulty: Level 1399 edit

Level distribution for adjective (quality): 3: 1 11: 10 14: 12 17: 23 18: 3 20: 4 318: 35 320: 28 330: 1 340: 2 360: 2 380: 1 400: 3 420: 4 430: 27 469: 27 470: 2 1040: 2 1060: 2 1070: 13 1090: 3 1110: 2 1120: 47 1214: 1 1399: 16

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: 5137 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cefr A1 (1 of 6) 800

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 10.64 1435 17% 8610 downrated 1
20th_books 11.74 1358 17% 8148 downrated 1
wiki_math 0.00 — — — 0
wiki_geography 7.73 2941 17% 9000 capped 1
wiki_biology 0.00 — — — 0
wiki_modern_life 26.26 873 17% 5238 downrated 1
wiki_arts 26.57 827 17% 4962 downrated 1
wiki_society 57.88 318 17% 1908 downrated 1
wiki_linguistics 42.18 524 17% 3144 downrated 1
wiki_physical_science 0.00 — — — 0
wiki_history 44.49 431 17% 2586 downrated 1
early_modern_science 6.70 2692 17% 10400 capped 1
religious_translated 9.99 1687 17% 10122 downrated 1
cooking 0.00 — — — 0
legal_scotus 31.16 691 17% 4146 downrated 1
eu_parliament_debates 19.66 1018 17% 6108 downrated 1
openstax_science 11.01 2019 17% 11000 capped 1
openstax_society 47.22 458 17% 2748 downrated 1
wpa_life_histories 11.55 1364 17% 8184 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.