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: 934 (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 27.03 3078 100% 3078 1
20th_books 29.44 2817 100% 2817 1
wiki_math 21.88 3416 100% 3416 1
wiki_geography 90.04 1572 100% 1572 1
wiki_biology 935.80 105 100% 105 1
wiki_modern_life 212.70 588 100% 588 1
wiki_arts 215.69 581 100% 581 1
wiki_society 169.34 775 100% 775 1
wiki_linguistics 91.83 1405 100% 1405 1
wiki_physical_science 176.65 818 100% 818 1
wiki_history 119.30 1099 100% 1099 1
early_modern_science 69.83 1646 100% 1646 1
religious_translated 71.74 1434 100% 1434 1
cooking 0.00 — — — 0
legal_scotus 20.43 4489 100% 4489 1
eu_parliament_debates 24.63 3282 100% 3282 1
openstax_science 180.26 789 100% 789 1
openstax_society 144.96 976 100% 976 1
wpa_life_histories 8.69 6646 100% 6646 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.