Base Difficulty

Base difficulty: Level 14 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: 501 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
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 138.98 712 100% 664 2
20th_books 103.28 952 100% 952 1
wiki_math 889.26 140 100% 140 1
wiki_geography 300.57 405 100% 405 1
wiki_biology 347.09 336 100% 336 1
wiki_modern_life 356.17 293 100% 293 1
wiki_arts 217.71 570 100% 570 1
wiki_society 380.40 283 100% 283 1
wiki_linguistics 213.89 620 100% 620 1
wiki_physical_science 593.89 181 100% 181 1
wiki_history 179.31 716 100% 716 1
early_modern_science 438.92 242 100% 242 1
religious_translated 152.34 715 100% 715 1
cooking 49.58 1775 100% 1775 1
legal_scotus 108.07 1324 100% 1126 2
eu_parliament_debates 131.21 910 100% 910 1
openstax_science 239.39 584 100% 584 1
openstax_society 336.48 369 100% 369 1
wpa_life_histories 53.11 1795 100% 1795 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.