Base Difficulty

Base difficulty: Level 11 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 503.25 227 100% 227 1
20th_books 526.06 230 100% 230 1
wiki_math 1713.44 65 100% 65 1
wiki_geography 487.13 212 100% 212 1
wiki_biology 1004.80 94 100% 94 1
wiki_modern_life 1178.37 69 100% 69 1
wiki_arts 852.13 113 100% 113 1
wiki_society 787.25 113 100% 113 1
wiki_linguistics 874.66 130 100% 130 1
wiki_physical_science 1029.68 87 100% 87 1
wiki_history 449.62 204 100% 204 1
early_modern_science 1242.12 87 100% 87 1
religious_translated 644.30 189 100% 189 1
cooking 2032.63 77 100% 77 1
legal_scotus 530.68 203 100% 203 1
eu_parliament_debates 328.93 382 100% 382 1
openstax_science 1901.89 51 100% 51 1
openstax_society 1009.61 102 100% 102 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.