Base Difficulty

Base difficulty: Level 11 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: 454 (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 Starters (1 of 3) 325
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 238.37 451 100% 422 2
20th_books 237.45 464 100% 433 2
wiki_math 179.66 1340 100% 605 3
wiki_geography 144.09 936 100% 936 1
wiki_biology 579.46 238 100% 197 2
wiki_modern_life 401.46 368 100% 296 2
wiki_arts 393.08 315 100% 279 2
wiki_society 114.47 1211 100% 1211 1
wiki_linguistics 508.79 250 100% 234 2
wiki_physical_science 324.07 596 100% 438 2
wiki_history 237.54 494 100% 494 1
early_modern_science 328.65 401 100% 333 2
religious_translated 127.63 951 100% 783 2
cooking 157.72 787 100% 787 1
legal_scotus 133.53 1061 100% 922 2
eu_parliament_debates 144.30 823 100% 823 1
openstax_science 279.94 671 100% 498 2
openstax_society 258.95 581 100% 522 2
wpa_life_histories 234.95 484 100% 448 2

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.