Base Difficulty

Base difficulty: Level 318 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: 1266 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
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 44.17 1998 100% 1998 1
20th_books 50.48 1744 100% 1744 1
wiki_math 137.05 974 100% 974 1
wiki_geography 204.66 620 100% 620 1
wiki_biology 160.44 844 100% 844 1
wiki_modern_life 139.38 1016 100% 1016 1
wiki_arts 184.92 693 100% 693 1
wiki_society 132.59 1022 100% 1022 1
wiki_linguistics 117.99 1099 100% 1099 1
wiki_physical_science 120.68 1218 100% 1218 1
wiki_history 146.12 896 100% 896 1
early_modern_science 101.33 1147 100% 1147 1
religious_translated 42.16 2237 100% 2237 1
cooking 89.00 1234 100% 1234 1
legal_scotus 136.37 957 100% 957 1
eu_parliament_debates 111.06 1084 100% 1084 1
openstax_science 186.49 763 100% 763 1
openstax_society 116.47 1212 100% 1212 1
wpa_life_histories 84.65 1133 100% 1133 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.