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: 116 (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 Movers (2 of 3) 750

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 1112.27 115 100% 115 1
20th_books 1196.41 108 100% 108 1
wiki_math 2175.80 49 100% 49 1
wiki_geography 852.42 113 100% 113 1
wiki_biology 1157.83 79 100% 79 1
wiki_modern_life 1239.62 65 100% 65 1
wiki_arts 878.79 103 100% 103 1
wiki_society 993.90 83 100% 83 1
wiki_linguistics 1154.38 91 100% 91 1
wiki_physical_science 1568.05 59 100% 59 1
wiki_history 1132.36 76 100% 76 1
early_modern_science 988.32 110 100% 110 1
religious_translated 868.72 150 100% 150 1
cooking 347.06 442 100% 442 1
legal_scotus 857.51 122 100% 122 1
eu_parliament_debates 857.68 130 100% 130 1
openstax_science 1125.03 82 100% 82 1
openstax_society 923.05 111 100% 111 1
wpa_life_histories 1477.33 98 100% 98 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.