Base Difficulty

Base difficulty: Level 10 edit

Level distribution for pronoun (pronoun_other): 9: 1 10: 3 11: 6 18: 9 226: 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: 30 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600
cambridge_yle Movers (2 of 3) 750
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 4200.77 35 100% 35 1
20th_books 3135.11 47 100% 47 1
wiki_math 5199.29 22 100% 22 1
wiki_geography 4829.08 19 100% 19 1
wiki_biology 5415.69 21 100% 21 1
wiki_modern_life 4727.70 22 100% 22 1
wiki_arts 4720.67 21 100% 21 1
wiki_society 4715.71 21 100% 21 1
wiki_linguistics 4795.94 22 100% 22 1
wiki_physical_science 5556.34 20 100% 20 1
wiki_history 4503.44 23 100% 23 1
early_modern_science 9304.19 12 100% 12 1
religious_translated 5858.83 24 100% 24 1
cooking 2381.00 60 100% 60 1
legal_scotus 3387.32 27 100% 27 1
eu_parliament_debates 6743.44 21 100% 21 1
openstax_science 4160.98 22 100% 22 1
openstax_society 3320.98 29 100% 29 1
wpa_life_histories 1639.34 84 100% 84 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.