Base Difficulty

Base difficulty: Level 150 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: 249 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cefr A2 (2 of 6) 2100

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 206.47 1025 100% 447 3
20th_books 138.60 1402 100% 646 3
wiki_math 1074.49 238 100% 124 4
wiki_geography 448.72 266 100% 247 2
wiki_biology 760.32 137 100% 132 2
wiki_modern_life 531.22 200 100% 184 2
wiki_arts 700.74 173 100% 149 4
wiki_society 937.43 133 100% 107 4
wiki_linguistics 925.21 164 100% 130 4
wiki_physical_science 560.19 292 100% 232 3
wiki_history 577.44 197 100% 173 3
early_modern_science 455.79 550 100% 242 3
religious_translated 261.64 868 100% 381 4
cooking 148.70 1108 100% 701 2
legal_scotus 896.91 286 100% 133 4
eu_parliament_debates 559.56 428 100% 212 4
openstax_science 594.35 416 100% 223 3
openstax_society 834.68 300 100% 146 4
wpa_life_histories 91.97 1485 100% 913 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.