Base Difficulty

Base difficulty: Level 6 edit

Level distribution for adverb (style): 6: 1 19: 4 20: 4 105: 46 1080: 1 1202: 1 1399: 2

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: 120 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
cambridge_yle Starters (1 of 3) 325
cefr A1 (1 of 6) 800

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 2259.28 60 100% 60 1
20th_books 2064.27 65 100% 65 1
wiki_math 447.99 317 100% 317 1
wiki_geography 497.73 217 100% 217 1
wiki_biology 885.30 110 100% 110 1
wiki_modern_life 808.26 111 100% 111 1
wiki_arts 647.39 151 100% 151 1
wiki_society 394.07 270 100% 270 1
wiki_linguistics 596.88 199 100% 199 1
wiki_physical_science 985.46 93 100% 93 1
wiki_history 468.39 203 100% 203 1
early_modern_science 2741.92 46 100% 46 1
religious_translated 620.16 197 100% 197 1
cooking 2942.54 47 100% 47 1
legal_scotus 317.25 388 100% 388 1
eu_parliament_debates 2301.42 49 100% 49 1
openstax_science 952.78 94 100% 94 1
openstax_society 549.71 203 100% 203 1
wpa_life_histories 1251.85 114 100% 114 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.