Base Difficulty

Base difficulty: Level 23 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: 1740 (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 49.19 1830 100% 1830 1
20th_books 52.16 1709 100% 1709 1
wiki_math 40.42 2341 100% 2341 1
wiki_geography 77.07 1830 100% 1830 1
wiki_biology 154.06 888 100% 888 1
wiki_modern_life 105.84 1392 100% 1392 1
wiki_arts 90.85 1531 100% 1531 1
wiki_society 44.74 3115 100% 3115 1
wiki_linguistics 66.64 1914 100% 1914 1
wiki_physical_science 196.04 739 100% 739 1
wiki_history 66.07 2080 100% 2080 1
early_modern_science 115.04 1000 100% 1000 1
religious_translated 0.00 — — — 0
cooking 28.17 2500 100% 2500 1
legal_scotus 22.06 4260 100% 4260 1
eu_parliament_debates 295.99 419 100% 419 1
openstax_science 138.39 1029 100% 1029 1
openstax_society 66.97 2062 100% 2062 1
wpa_life_histories 13.89 5160 100% 5160 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.