Base Difficulty

Base difficulty: Level 105 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: 1526 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cefr A2 (2 of 6) 2100

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 125.25 760 100% 760 1
20th_books 150.80 668 100% 668 1
wiki_math 301.73 451 100% 451 1
wiki_geography 0.00 — — — 0
wiki_biology 0.00 — — — 0
wiki_modern_life 41.47 3452 100% 3452 1
wiki_arts 48.11 2859 100% 2859 1
wiki_society 36.40 3752 100% 3752 1
wiki_linguistics 56.06 2198 100% 2198 1
wiki_physical_science 153.42 948 100% 948 1
wiki_history 28.81 4443 100% 4443 1
early_modern_science 226.18 479 100% 479 1
religious_translated 33.26 2736 100% 2736 1
cooking 101.39 1135 100% 1135 1
legal_scotus 35.41 3093 100% 3093 1
eu_parliament_debates 95.24 1249 100% 1249 1
openstax_science 117.12 1203 100% 1203 1
openstax_society 80.95 1698 100% 1698 1
wpa_life_histories 48.27 1856 100% 1856 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.