Base Difficulty

Base difficulty: Level 1399 edit

Level distribution for adjective (linguistic): 1399: 21

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: 9526 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600
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 2.84 2726 9% 20000 capped 1
20th_books 2.35 3130 9% 20000 capped 1
wiki_math 2.72 2813 9% 8000 capped 1
wiki_geography 16.55 716 9% 7876 downrated 1
wiki_biology 15.50 799 9% 8789 downrated 1
wiki_modern_life 12.48 1033 9% 10000 capped 1
wiki_arts 6.58 1900 9% 10000 capped 1
wiki_society 12.77 959 9% 10549 downrated 1
wiki_linguistics 11.02 1064 9% 9000 capped 1
wiki_physical_science 23.46 533 9% 5863 downrated 1
wiki_history 10.64 1123 9% 9000 capped 1
early_modern_science 8.11 1308 9% 10400 capped 1
religious_translated 5.64 1634 9% 10400 capped 1
cooking 0.00 — — — 0
legal_scotus 2.46 3698 9% 20000 capped 1
eu_parliament_debates 13.16 819 9% 9009 downrated 1
openstax_science 26.47 444 9% 4884 downrated 1
openstax_society 11.45 1126 9% 11000 capped 1
wpa_life_histories 7.45 1167 9% 12837 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.