Base Difficulty

Base difficulty: Level 18 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: 1864 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600
cambridge_yle Flyers (3 of 3) 1200
cefr A1 (1 of 6) 800

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 73.05 1257 100% 1257 1
20th_books 121.58 816 100% 816 1
wiki_math 0.00 — — — 0
wiki_geography 0.00 — — — 0
wiki_biology 0.00 — — — 0
wiki_modern_life 31.56 4342 100% 4342 1
wiki_arts 40.64 3321 100% 3321 1
wiki_society 61.37 2259 100% 2259 1
wiki_linguistics 24.18 3985 100% 3985 1
wiki_physical_science 0.00 — — — 0
wiki_history 52.60 2590 100% 2590 1
early_modern_science 18.22 4885 100% 4885 1
religious_translated 23.81 3555 100% 3555 1
cooking 0.00 — — — 0
legal_scotus 64.56 1904 100% 1904 1
eu_parliament_debates 80.00 1432 100% 1432 1
openstax_science 23.69 4476 100% 4476 1
openstax_society 77.30 1775 100% 1775 1
wpa_life_histories 114.73 899 100% 899 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.