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: 940 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
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 11.60 5856 100% 5856 1
20th_books 26.50 3068 100% 3068 1
wiki_math 17.27 3952 100% 3952 1
wiki_geography 56.50 2457 100% 2457 1
wiki_biology 940.82 103 100% 103 1
wiki_modern_life 219.33 562 100% 562 1
wiki_arts 136.81 981 100% 981 1
wiki_society 150.52 888 100% 888 1
wiki_linguistics 82.75 1547 100% 1547 1
wiki_physical_science 153.42 949 100% 949 1
wiki_history 288.33 399 100% 399 1
early_modern_science 67.17 1708 100% 1708 1
religious_translated 66.13 1549 100% 1549 1
cooking 0.00 — — — 0
legal_scotus 22.05 4264 100% 4264 1
eu_parliament_debates 13.48 4742 100% 4742 1
openstax_science 170.29 840 100% 840 1
openstax_society 175.94 808 100% 808 1
wpa_life_histories 34.09 2449 100% 2449 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.