Base Difficulty

Base difficulty: Level 9 edit

Level distribution for determiner (determiner_other): 8: 1 9: 1 10: 8 11: 3 13: 1 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, 1-1299 for level
Frequency and Tier Signals
Combined Frequency Rank: — (run python -m storage.admin --calc-ranks to populate)
Tier Signals
Source Tier Rank used
cambridge_yle Flyers (3 of 3) 1200

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 1280.09 99 100% 99 1
20th_books 969.64 133 100% 133 1
wiki_math 3501.33 30 100% 30 1
wiki_geography 1828.95 46 100% 46 1
wiki_biology 2898.90 36 100% 36 1
wiki_modern_life 3741.55 28 100% 28 1
wiki_arts 2739.41 37 100% 37 1
wiki_society 3247.36 28 100% 28 1
wiki_linguistics 3329.08 34 100% 34 1
wiki_physical_science 3490.43 26 100% 26 1
wiki_history 1479.78 60 100% 60 1
early_modern_science 2007.41 60 100% 60 1
religious_translated 1136.38 116 100% 116 1
cooking 566.51 269 100% 269 1
legal_scotus 2370.69 40 100% 40 1
eu_parliament_debates 1414.89 80 100% 80 1
openstax_science 2439.90 37 100% 37 1
openstax_society 2220.72 44 100% 44 1
wpa_life_histories 0.00 — — — 0

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.