Base Difficulty

Base difficulty: Level 274 edit

Level distribution for noun (financial_ledger_entry): 20: 1 224: 1 270: 1 274: 5 275: 1 276: 2 299: 1 300: 6 380: 1 440: 1 1399: 18

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: 3530 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cefr B1 (3 of 6) 4200

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 35.89 471 17% 2826 downrated 1
20th_books 35.23 496 17% 2976 downrated 1
wiki_math 0.00 — — — 0
wiki_geography 7.07 3227 17% 9000 capped 1
wiki_biology 17.02 1371 17% 8226 downrated 1
wiki_modern_life 18.96 1287 17% 7722 downrated 1
wiki_arts 22.52 992 17% 5952 downrated 1
wiki_society 7.96 2935 17% 11000 capped 1
wiki_linguistics 3.67 4253 17% 9000 capped 1
wiki_physical_science 14.52 1683 17% 8000 capped 1
wiki_history 7.38 3061 17% 9000 capped 1
early_modern_science 38.03 475 17% 2850 downrated 1
religious_translated 11.84 1455 17% 8730 downrated 1
cooking 350.44 74 17% 444 downrated 1
legal_scotus 29.99 2123 17% 3299 downrated 2
eu_parliament_debates 31.11 2039 17% 2700 downrated 2
openstax_science 6.86 2981 17% 11000 capped 1
openstax_society 8.20 2656 17% 11000 capped 1
wpa_life_histories 59.87 323 17% 1938 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.