Base Difficulty

Base difficulty: Level 278 edit

Level distribution for verb (bodily_function): 278: 1 1078: 1

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: 4896 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
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 62.29 298 10% 1657 downrated 4
20th_books 52.77 302 10% 2001 downrated 3
wiki_math 4.77 3217 11% 8000 capped 2
wiki_geography 9.51 2373 11% 9000 capped 2
wiki_biology 32.94 1014 10% 4201 downrated 4
wiki_modern_life 9.72 2322 11% 10000 capped 2
wiki_arts 9.90 2169 11% 10000 capped 2
wiki_society 10.07 2668 10% 11000 capped 2
wiki_linguistics 2.99 3720 11% 9000 capped 1
wiki_physical_science 0.00 — — — 0
wiki_history 15.14 1642 11% 9000 capped 2
early_modern_science 28.27 979 10% 3935 downrated 4
religious_translated 51.07 423 10% 2091 downrated 3
cooking 57.62 322 10% 2517 downrated 2
legal_scotus 4.38 4419 10% 18231 downrated 3
eu_parliament_debates 20.81 1078 11% 4905 downrated 4
openstax_science 3.99 5225 11% 11000 capped 2
openstax_society 12.53 2549 11% 9958 downrated 3
wpa_life_histories 39.89 596 10% 2558 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.