Base Difficulty

Base difficulty: Level 300 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: 4052 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
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 53.08 335 17% 1933 downrated 2
20th_books 42.63 417 17% 2363 downrated 2
wiki_math 5.00 2846 17% 8000 capped 1
wiki_geography 34.81 603 17% 3618 downrated 1
wiki_biology 26.76 843 17% 5058 downrated 1
wiki_modern_life 20.36 1188 17% 7128 downrated 1
wiki_arts 21.69 1044 17% 6264 downrated 1
wiki_society 15.89 1496 17% 8976 downrated 1
wiki_linguistics 19.44 1127 17% 6762 downrated 1
wiki_physical_science 31.67 760 17% 4560 downrated 1
wiki_history 28.16 768 17% 4608 downrated 1
early_modern_science 45.06 441 17% 2388 downrated 2
religious_translated 76.04 277 17% 1498 downrated 2
cooking 31.93 676 17% 4056 downrated 1
legal_scotus 27.93 1525 17% 4620 downrated 2
eu_parliament_debates 16.47 1198 17% 7188 downrated 1
openstax_science 29.37 813 17% 4878 downrated 1
openstax_society 20.12 1179 17% 7074 downrated 1
wpa_life_histories 49.00 392 17% 2231 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.