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: 824 (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 165.72 320 50% 567 downrated 1
20th_books 0.00 395 50% 692 downrated 0
wiki_vital 146.29 369 0% 758 downrated 1
wiki_math 208.69 342 50% 616 downrated 1
wiki_geography 155.64 366 50% 740 downrated 1
wiki_biology 0.00 249 50% 510 downrated 1
wiki_modern_life 155.75 363 50% 767 downrated 1
early_modern_science 201.78 266 50% 505 downrated 1
religious_translated 52.48 973 50% 1787 downrated 1
cooking 60.62 970 50% 1723 downrated 1
legal_scotus 213.09 272 50% 469 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.