Base Difficulty

Base difficulty: Level 11 edit

Level distribution for determiner (determiner_other): 6: 1 8: 1 9: 1 10: 10 11: 3 14: 2 18: 1

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: 148 (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 690.17 180 100% 180 1
20th_books 574.86 214 100% 214 1
wiki_math 1568.33 71 100% 71 1
wiki_geography 395.89 278 100% 278 1
wiki_biology 654.14 149 100% 149 1
wiki_modern_life 853.18 100 100% 100 1
wiki_arts 760.51 123 100% 123 1
wiki_society 672.21 138 100% 138 1
wiki_linguistics 1123.75 96 100% 96 1
wiki_physical_science 1054.99 83 100% 83 1
wiki_history 671.81 139 100% 139 1
early_modern_science 2020.31 57 100% 57 1
religious_translated 718.51 178 100% 178 1
cooking 822.59 193 100% 193 1
legal_scotus 1004.64 104 100% 104 1
eu_parliament_debates 821.99 142 100% 142 1
openstax_science 1306.64 73 100% 73 1
openstax_society 812.68 129 100% 129 1
wpa_life_histories 661.25 183 100% 183 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.