Base Difficulty

Base difficulty: Level 9 edit

Level distribution for adverb (location): -1: 2 9: 12 19: 4 27: 3 29: 17

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: 301 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cambridge_yle Movers (2 of 3) 750

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 1440.41 84 100% 84 1
20th_books 1574.12 81 100% 81 1
wiki_vital 196.79 607 100% 607 1
wiki_math 121.03 1073 100% 1073 1
wiki_geography 126.25 1029 100% 1029 1
wiki_biology 101.94 1373 100% 1373 1
wiki_modern_life 136.50 1035 100% 1035 1
early_modern_science 654.43 156 100% 156 1
religious_translated 580.89 209 100% 209 1
cooking 213.01 632 100% 632 1
legal_scotus 304.79 411 100% 411 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.