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: 740 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cambridge_yle Flyers (3 of 3) 1200
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 590.93 307 100% 172 4
20th_books 535.47 320 100% 193 4
wiki_math 20.73 3581 100% 3581 1
wiki_geography 0.00 — — — 0
wiki_biology 0.00 — — — 0
wiki_modern_life 0.00 — — — 0
wiki_arts 61.20 4053 100% 2145 2
wiki_society 69.46 3101 100% 1928 2
wiki_linguistics 33.63 3217 100% 3217 1
wiki_physical_science 0.00 — — — 0
wiki_history 70.07 3655 100% 1877 2
early_modern_science 149.90 1249 100% 736 3
religious_translated 312.50 687 100% 329 4
cooking 83.36 1304 100% 1304 1
legal_scotus 95.29 3014 100% 1032 4
eu_parliament_debates 547.67 280 100% 209 4
openstax_science 0.00 — — — 0
openstax_society 131.75 2303 100% 968 3
wpa_life_histories 168.83 904 100% 534 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.