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: 900 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
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 423.51 142 40% 276 downrated 4
20th_books 480.05 133 40% 251 downrated 4
wiki_math 76.93 1126 40% 1610 downrated 2
wiki_geography 58.98 2650 40% 2319 3
wiki_biology 90.06 1311 40% 1483 downrated 4
wiki_modern_life 97.05 922 40% 1450 downrated 3
wiki_arts 115.91 1035 40% 1176 downrated 4
wiki_society 105.19 969 40% 1288 downrated 4
wiki_linguistics 13.88 3126 40% 7815 downrated 1
wiki_physical_science 41.78 1963 40% 3257 downrated 2
wiki_history 99.89 1247 40% 1331 downrated 3
early_modern_science 79.24 670 40% 1375 downrated 2
religious_translated 166.69 316 40% 650 downrated 2
cooking 0.00 — — — 0
legal_scotus 95.77 855 40% 1234 downrated 4
eu_parliament_debates 142.42 784 40% 794 downrated 4
openstax_science 75.57 1186 40% 1734 downrated 3
openstax_society 202.96 611 40% 687 downrated 4
wpa_life_histories 124.41 503 40% 791 downrated 4

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.