Base Difficulty

Base difficulty: Level 14 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: 1050 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
cambridge_yle Flyers (3 of 3) 1200
cefr A1 (1 of 6) 800

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 149.80 382 50% 659 downrated 3
20th_books 205.40 300 50% 517 downrated 3
wiki_math 46.20 1591 50% 2173 downrated 2
wiki_geography 17.01 3967 50% 7934 downrated 1
wiki_biology 92.55 731 50% 1462 downrated 1
wiki_modern_life 108.85 737 50% 1238 downrated 2
wiki_arts 51.54 1332 50% 2664 downrated 1
wiki_society 33.25 2090 50% 4180 downrated 1
wiki_linguistics 35.74 1785 50% 3570 downrated 1
wiki_physical_science 60.24 1224 50% 2448 downrated 1
wiki_history 40.03 1702 50% 3404 downrated 1
early_modern_science 93.40 581 50% 1162 downrated 1
religious_translated 76.26 710 50% 1420 downrated 1
cooking 405.66 199 50% 398 downrated 1
legal_scotus 35.52 1942 50% 3129 downrated 2
eu_parliament_debates 68.63 946 50% 1607 downrated 2
openstax_science 51.95 1651 50% 2485 downrated 2
openstax_society 101.89 843 50% 1357 downrated 2
wpa_life_histories 292.20 219 50% 394 downrated 3

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.