Base Difficulty

Base difficulty: Level 1214 edit

Level distribution for verb (rule_defined_action): 415: 1 475: 5 485: 2 1200: 1 1202: 3 1203: 1 1204: 2 1205: 3 1206: 3 1208: 3 1211: 1 1214: 5 1220: 4 1224: 1 1226: 3 1399: 7

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: 10356 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
cefr B1 (3 of 6) 4200

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 2.12 617 1% 20000 capped 4
20th_books 2.21 602 1% 20000 capped 4
wiki_math 3.00 972 1% 8000 capped 4
wiki_geography 6.73 176 1% 9000 capped 4
wiki_biology 3.88 587 1% 9000 capped 4
wiki_modern_life 5.38 402 1% 10000 capped 4
wiki_arts 5.49 309 1% 10000 capped 4
wiki_society 5.83 308 1% 11000 capped 4
wiki_linguistics 2.49 714 1% 9000 capped 4
wiki_physical_science 5.74 377 1% 8000 capped 4
wiki_history 8.94 118 1% 9000 capped 3
early_modern_science 2.89 499 1% 10400 capped 4
religious_translated 3.18 627 1% 10400 capped 4
cooking 0.00 — — — 0
legal_scotus 1.58 1370 1% 20000 capped 4
eu_parliament_debates 2.75 677 1% 11000 capped 4
openstax_science 4.92 387 1% 11000 capped 4
openstax_society 6.47 261 1% 11000 capped 4
wpa_life_histories 1.80 1027 1% 20000 capped 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.