Base Difficulty

Base difficulty: Level 475 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: 1058 (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 36.08 2752 80% 2058 3
20th_books 26.92 3210 80% 2759 2
wiki_math 363.10 848 80% 353 4
wiki_geography 292.65 362 80% 409 downrated 2
wiki_biology 276.23 457 80% 454 3
wiki_modern_life 100.65 1155 80% 1444 downrated 1
wiki_arts 112.59 957 80% 1196 downrated 1
wiki_society 145.72 853 80% 904 downrated 2
wiki_linguistics 162.09 735 80% 781 downrated 2
wiki_physical_science 209.64 755 80% 663 3
wiki_history 115.57 910 80% 1138 downrated 1
early_modern_science 148.84 978 80% 742 3
religious_translated 114.44 1116 80% 841 3
cooking 120.80 1001 80% 871 2
legal_scotus 58.93 2182 80% 1672 3
eu_parliament_debates 39.01 3112 80% 2088 2
openstax_science 254.35 972 80% 535 4
openstax_society 181.88 1063 80% 749 3
wpa_life_histories 31.55 3323 80% 2456 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.