Base Difficulty

Base difficulty: Level 1399 edit

Level distribution for adverb (intensity): 23: 7 105: 6 1399: 4

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: 1198 (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 25.58 3221 100% 3221 1
20th_books 30.29 2748 100% 2748 1
wiki_math 49.52 2034 100% 2034 1
wiki_geography 363.89 318 100% 318 1
wiki_biology 343.81 344 100% 344 1
wiki_modern_life 167.17 814 100% 814 1
wiki_arts 198.67 637 100% 637 1
wiki_society 125.73 1083 100% 1083 1
wiki_linguistics 346.49 370 100% 370 1
wiki_physical_science 218.13 655 100% 655 1
wiki_history 144.63 908 100% 908 1
early_modern_science 72.49 1595 100% 1595 1
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 5.06 9867 100% 9867 1
eu_parliament_debates 13.38 4770 100% 4770 1
openstax_science 112.14 1248 100% 1248 1
openstax_society 68.56 2016 100% 2016 1
wpa_life_histories 109.58 913 100% 913 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.