Base Difficulty

Base difficulty: Level 17 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: 1755 (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 69.49 1325 100% 1325 1
20th_books 75.51 1263 100% 1263 1
wiki_math 0.00 — — — 0
wiki_geography 97.12 1446 100% 1446 1
wiki_biology 108.60 1289 100% 1289 1
wiki_modern_life 89.96 1634 100% 1634 1
wiki_arts 35.68 3758 100% 3758 1
wiki_society 32.54 4132 100% 4132 1
wiki_linguistics 44.07 2649 100% 2649 1
wiki_physical_science 82.58 1766 100% 1766 1
wiki_history 0.00 — — — 0
early_modern_science 114.29 1010 100% 1010 1
religious_translated 25.55 3370 100% 3370 1
cooking 47.33 1838 100% 1838 1
legal_scotus 150.57 1133 100% 785 3
eu_parliament_debates 16.04 4286 100% 4286 1
openstax_science 73.15 1863 100% 1863 1
openstax_society 36.79 3319 100% 3319 1
wpa_life_histories 43.92 2073 100% 2073 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.