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: 57 (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 3140.20 45 100% 45 1
20th_books 3406.86 41 100% 41 1
wiki_math 1721.93 61 100% 61 1
wiki_geography 1043.88 89 100% 89 1
wiki_biology 2033.86 50 100% 50 1
wiki_modern_life 1978.16 48 100% 48 1
wiki_arts 1543.16 59 100% 59 1
wiki_society 1590.41 51 100% 51 1
wiki_linguistics 1962.12 58 100% 58 1
wiki_physical_science 2201.85 41 100% 41 1
wiki_history 1838.37 46 100% 46 1
early_modern_science 2845.36 43 100% 43 1
religious_translated 3769.68 38 100% 38 1
cooking 4176.04 30 100% 30 1
legal_scotus 1856.68 55 100% 55 1
eu_parliament_debates 1354.68 83 100% 83 1
openstax_science 2679.78 33 100% 33 1
openstax_society 2401.24 40 100% 40 1
wpa_life_histories 4129.95 31 100% 31 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.