Base Difficulty

Base difficulty: Level 350 edit

Level distribution for adjective (location): 350: 31 1010: 6 1020: 8 1040: 1 1050: 1 1070: 2 1120: 22 1399: 2

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: 581 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cefr B2 (4 of 6) 6900

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 18.06 6030 100% 3500 2
20th_books 21.45 5852 100% 2989 2
wiki_math 29.94 2810 100% 2810 1
wiki_geography 985.69 212 100% 110 2
wiki_biology 414.72 498 100% 313 2
wiki_modern_life 274.91 611 100% 477 2
wiki_arts 496.83 286 100% 227 2
wiki_society 461.42 295 100% 247 2
wiki_linguistics 672.15 285 100% 187 2
wiki_physical_science 158.41 1799 100% 912 2
wiki_history 508.08 330 100% 229 2
early_modern_science 74.00 2102 100% 1420 2
religious_translated 31.33 4738 100% 2398 2
cooking 102.52 1704 100% 872 2
legal_scotus 44.11 2995 100% 2205 2
eu_parliament_debates 94.71 1565 100% 1074 2
openstax_science 0.00 — — — 0
openstax_society 322.14 847 100% 443 2
wpa_life_histories 58.57 1965 100% 1384 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.