Base Difficulty

Base difficulty: Level 1399 edit

Level distribution for adjective (physical_property): 3: 1 8: 2 11: 11 14: 20 17: 9 18: 7 20: 2 27: 3 133: 1 179: 1 249: 1 330: 1 340: 1 355: 38 360: 1 370: 2 379: 1 380: 1 420: 1 1000: 1 1010: 3 1040: 8 1050: 5 1090: 2 1120: 16 1209: 1 1399: 9

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: 7039 (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 0.00 — — — 0
20th_books 2.10 5343 17% 20000 capped 1
wiki_math 12.28 1539 17% 8000 capped 1
wiki_geography 7.14 3182 17% 9000 capped 1
wiki_biology 18.80 1239 17% 7434 downrated 1
wiki_modern_life 29.64 757 17% 4542 downrated 1
wiki_arts 7.64 2974 17% 10000 capped 1
wiki_society 20.95 1082 17% 6492 downrated 1
wiki_linguistics 6.67 2830 17% 9000 capped 1
wiki_physical_science 27.07 896 17% 5376 downrated 1
wiki_history 11.23 2050 17% 9000 capped 1
early_modern_science 6.20 2850 17% 10400 capped 1
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 34.77 612 17% 3672 downrated 1
eu_parliament_debates 58.49 345 17% 2070 downrated 1
openstax_science 36.00 647 17% 3882 downrated 1
openstax_society 23.47 1006 17% 6036 downrated 1
wpa_life_histories 0.92 9084 17% 20000 capped 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.