Base Difficulty

Base difficulty: Level 1399 edit

Level distribution for noun (abstract_condition): 300: 37 370: 1 390: 1 400: 4 405: 1 420: 1 1020: 1 1030: 2 1050: 4 1060: 6 1070: 16 1080: 2 1120: 4 1130: 2 1399: 55

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: 1796 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600
cefr A2 (2 of 6) 2100

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 36.92 1650 67% 2475 downrated 1
20th_books 50.20 1266 67% 1899 downrated 1
wiki_math 48.37 2286 67% 1905 2
wiki_geography 46.89 2000 67% 3000 downrated 1
wiki_biology 66.14 1420 67% 2130 downrated 1
wiki_modern_life 71.11 1389 67% 2084 downrated 1
wiki_arts 176.30 437 67% 656 downrated 1
wiki_society 66.23 1419 67% 2128 downrated 1
wiki_linguistics 22.42 3215 67% 4823 downrated 1
wiki_physical_science 22.32 3715 67% 5573 downrated 1
wiki_history 193.93 452 67% 606 downrated 2
early_modern_science 52.62 1477 67% 2216 downrated 1
religious_translated 46.15 1486 67% 2229 downrated 1
cooking 52.57 1344 67% 2016 downrated 1
legal_scotus 21.04 3338 67% 5007 downrated 1
eu_parliament_debates 127.56 681 67% 875 downrated 2
openstax_science 49.01 1855 67% 2782 downrated 1
openstax_society 117.02 914 67% 1166 downrated 2
wpa_life_histories 28.52 2020 67% 3030 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.