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: 1771 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600
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 13.45 5262 100% 5262 1
20th_books 12.62 5336 100% 5336 1
wiki_math 43.93 1015 14% 2172 downrated 3
wiki_geography 107.12 1876 100% 1306 3
wiki_biology 45.18 3267 100% 2890 2
wiki_modern_life 119.68 1258 14% 1193 5
wiki_arts 102.72 862 14% 1318 downrated 4
wiki_society 175.38 604 14% 762 downrated 5
wiki_linguistics 64.98 1134 14% 1719 downrated 4
wiki_physical_science 136.71 1360 100% 1049 3
wiki_history 90.50 1456 14% 1474 downrated 3
early_modern_science 35.89 1991 14% 2832 downrated 2
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 74.63 1593 14% 1264 6
eu_parliament_debates 137.52 760 14% 643 7
openstax_science 146.97 983 14% 884 5
openstax_society 229.98 426 14% 581 downrated 5
wpa_life_histories 0.00 — — — 0

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.