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: 1655 (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 Movers (2 of 3) 750
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 54.20 1686 100% 1686 1
20th_books 84.56 1144 100% 1144 1
wiki_math 0.00 — — — 0
wiki_geography 0.00 — — — 0
wiki_biology 0.00 — — — 0
wiki_modern_life 52.60 2790 100% 2790 1
wiki_arts 53.85 2574 100% 2574 1
wiki_society 130.87 1036 100% 1036 1
wiki_linguistics 89.75 1444 100% 1444 1
wiki_physical_science 0.00 — — — 0
wiki_history 40.93 3270 100% 3270 1
early_modern_science 0.00 — — — 0
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 57.07 2103 100% 2103 1
eu_parliament_debates 51.31 2030 100% 2030 1
openstax_science 34.08 3488 100% 3488 1
openstax_society 233.97 596 100% 596 1
wpa_life_histories 95.90 1055 100% 1055 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.