Base Difficulty

Base difficulty: Level 300 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: 969 (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 97.96 1258 100% 910 2
20th_books 149.54 826 100% 641 2
wiki_math 70.25 2135 100% 1280 2
wiki_geography 75.22 1872 100% 1872 1
wiki_biology 0.00 — — — 0
wiki_modern_life 54.08 2703 100% 2703 1
wiki_arts 115.21 1725 100% 1180 2
wiki_society 110.61 2046 100% 1257 2
wiki_linguistics 24.56 3950 100% 3950 1
wiki_physical_science 0.00 — — — 0
wiki_history 220.68 549 100% 549 1
early_modern_science 63.76 2924 100% 1605 2
religious_translated 34.81 3993 100% 2226 2
cooking 0.00 — — — 0
legal_scotus 627.21 482 100% 201 4
eu_parliament_debates 270.86 818 100% 420 3
openstax_science 23.26 4558 100% 4558 1
openstax_society 264.73 1208 100% 505 4
wpa_life_histories 274.99 447 100% 377 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.