Base Difficulty

Base difficulty: Level 320 edit

Level distribution for adjective (quality): 3: 1 11: 10 14: 12 17: 23 18: 3 20: 4 318: 35 320: 28 330: 1 340: 2 360: 2 380: 1 400: 3 420: 4 430: 27 469: 27 470: 2 1040: 2 1060: 2 1070: 13 1090: 3 1110: 2 1120: 47 1214: 1 1399: 16

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: 913 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
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 0.00 — — — 0
20th_books 0.00 — — — 0
wiki_math 178.12 502 67% 753 downrated 1
wiki_geography 49.17 1916 67% 2874 downrated 1
wiki_biology 185.51 445 67% 668 downrated 1
wiki_modern_life 233.44 302 67% 453 downrated 1
wiki_arts 138.99 604 67% 906 downrated 1
wiki_society 274.79 258 67% 387 downrated 1
wiki_linguistics 251.28 326 67% 489 downrated 1
wiki_physical_science 241.87 365 67% 548 downrated 1
wiki_history 52.69 1726 67% 2589 downrated 1
early_modern_science 64.26 1216 67% 1824 downrated 1
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 268.55 298 67% 447 downrated 1
eu_parliament_debates 273.87 293 67% 440 downrated 1
openstax_science 486.22 133 67% 200 downrated 1
openstax_society 256.06 313 67% 470 downrated 1
wpa_life_histories 0.00 — — — 0

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.