Base Difficulty

Base difficulty: Level 19 edit

Level distribution for adverb (style): -1: 1 11: 10 19: 4 27: 3 28: 38

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: 70 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600
cambridge_yle Flyers (3 of 3) 1200

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 393.83 277 100% 277 1
20th_books 456.62 255 100% 255 1
wiki_vital 3181.57 29 100% 29 1
wiki_math 2869.59 38 100% 38 1
wiki_geography 3513.73 25 100% 25 1
wiki_biology 3796.89 27 100% 27 1
wiki_modern_life 3567.95 29 100% 29 1
early_modern_science 1125.88 97 100% 97 1
religious_translated 1552.46 82 100% 82 1
cooking 782.92 203 100% 203 1
legal_scotus 1985.95 53 100% 53 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.