Base Difficulty

Base difficulty: Level 29 edit

Level distribution for adverb (adverb_other): 26: 3 29: 3

Per-Language Difficulty Overrides

No difficulty overrides set. The base difficulty level will be used for all languages.

Add Difficulty Override
-1 to exclude, 1-36 for level
Frequency and Tier Signals
Combined Frequency Rank: 570 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600

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 148.49 348 50% 617 downrated 1
20th_books 111.32 473 50% 828 downrated 1
wiki_vital 255.69 176 50% 362 downrated 1
wiki_math 206.43 348 50% 626 downrated 1
wiki_geography 165.08 339 50% 685 downrated 1
wiki_biology 301.00 174 50% 356 downrated 1
wiki_modern_life 365.52 121 50% 256 downrated 1
early_modern_science 414.29 125 50% 238 downrated 1
religious_translated 76.70 694 50% 1274 downrated 1
cooking 135.96 525 50% 932 downrated 1
legal_scotus 244.11 236 50% 407 downrated 1

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.