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: 189 (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 1546.76 78 100% 78 1
20th_books 1412.22 84 100% 84 1
wiki_math 385.73 364 100% 364 1
wiki_geography 85.46 1663 100% 1663 1
wiki_biology 181.49 745 100% 745 1
wiki_modern_life 289.40 389 100% 389 1
wiki_arts 420.23 243 100% 243 1
wiki_society 627.29 150 100% 150 1
wiki_linguistics 446.60 274 100% 274 1
wiki_physical_science 358.44 366 100% 366 1
wiki_history 316.24 348 100% 348 1
early_modern_science 941.24 113 100% 113 1
religious_translated 1152.68 111 100% 111 1
cooking 416.93 377 100% 377 1
legal_scotus 390.60 308 100% 308 1
eu_parliament_debates 876.28 126 100% 126 1
openstax_science 1278.38 75 100% 75 1
openstax_society 1815.50 56 100% 56 1
wpa_life_histories 916.47 146 100% 146 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.