Base Difficulty

Base difficulty: Level 1399 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: 5074 (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 7.79 4317 44% 9713 downrated 1
20th_books 4.58 6140 44% 13815 downrated 1
wiki_math 0.00 — — — 0
wiki_geography 0.00 — — — 0
wiki_biology 0.00 — — — 0
wiki_modern_life 0.00 — — — 0
wiki_arts 0.00 — — — 0
wiki_society 30.09 3521 44% 4451 downrated 2
wiki_linguistics 0.00 — — — 0
wiki_physical_science 0.00 — — — 0
wiki_history 19.41 3103 44% 6982 downrated 1
early_modern_science 8.60 4660 44% 10400 capped 1
religious_translated 35.92 1278 44% 2876 downrated 1
cooking 0.00 — — — 0
legal_scotus 126.43 581 44% 997 downrated 2
eu_parliament_debates 30.63 2164 44% 3005 downrated 2
openstax_science 0.00 — — — 0
openstax_society 41.12 2728 44% 3130 downrated 2
wpa_life_histories 11.49 3748 44% 5709 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.