Base Difficulty

Base difficulty: Level 1399 edit

Level distribution for verb (mental_state): 5: 1 8: 5 9: 1 10: 1 19: 6 20: 1 110: 1 120: 2 150: 21 160: 1 162: 1 185: 1 220: 1 230: 1 265: 2 300: 1 310: 2 311: 2 410: 1 455: 1 460: 1 475: 1 485: 1 1120: 1 1399: 32

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: 8868 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
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 13.19 248 3% 8515 downrated 1
20th_books 14.70 238 3% 8171 downrated 1
wiki_math 10.10 404 3% 8000 capped 1
wiki_geography 1.86 2203 3% 9000 capped 1
wiki_biology 4.37 915 3% 9000 capped 1
wiki_modern_life 3.29 1299 3% 10000 capped 1
wiki_arts 5.55 673 3% 10000 capped 1
wiki_society 4.41 879 3% 11000 capped 1
wiki_linguistics 2.91 1294 3% 9000 capped 1
wiki_physical_science 3.17 1350 3% 8000 capped 1
wiki_history 3.96 975 3% 9000 capped 1
early_modern_science 18.95 154 3% 5287 downrated 1
religious_translated 13.85 246 3% 8446 downrated 1
cooking 2.26 1352 3% 5200 capped 1
legal_scotus 9.39 382 3% 13115 downrated 1
eu_parliament_debates 10.16 354 3% 11000 capped 1
openstax_science 12.18 284 3% 9751 downrated 1
openstax_society 10.06 359 3% 11000 capped 1
wpa_life_histories 12.86 275 3% 9442 downrated 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.