Base Difficulty

Base difficulty: Level 11 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: 503 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600

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 800.28 151 100% 151 1
20th_books 891.21 149 100% 149 1
wiki_math 63.52 1729 100% 1729 1
wiki_geography 0.00 — — — 0
wiki_biology 49.43 2742 100% 2742 1
wiki_modern_life 37.57 3775 100% 3775 1
wiki_arts 84.91 1620 100% 1620 1
wiki_society 116.37 1185 100% 1185 1
wiki_linguistics 72.55 1760 100% 1760 1
wiki_physical_science 87.10 1687 100% 1687 1
wiki_history 82.45 1652 100% 1652 1
early_modern_science 290.84 370 100% 370 1
religious_translated 327.71 336 100% 336 1
cooking 131.84 916 100% 916 1
legal_scotus 307.83 399 100% 399 1
eu_parliament_debates 750.81 165 100% 165 1
openstax_science 248.53 557 100% 557 1
openstax_society 428.66 273 100% 273 1
wpa_life_histories 433.36 281 100% 281 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.