Base Difficulty

Base difficulty: Level 8 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 1323.51 96 100% 96 1
20th_books 1368.99 92 100% 92 1
wiki_math 2520.73 42 100% 42 1
wiki_geography 2478.23 29 100% 29 1
wiki_biology 3866.04 25 100% 25 1
wiki_modern_life 3104.27 31 100% 31 1
wiki_arts 2532.24 39 100% 39 1
wiki_society 2996.00 32 100% 32 1
wiki_linguistics 3842.76 29 100% 29 1
wiki_physical_science 2984.67 32 100% 32 1
wiki_history 1967.36 43 100% 43 1
early_modern_science 3154.01 38 100% 38 1
religious_translated 1339.20 98 100% 98 1
cooking 1053.71 152 100% 152 1
legal_scotus 2105.04 48 100% 48 1
eu_parliament_debates 1804.60 64 100% 64 1
openstax_science 2738.56 32 100% 32 1
openstax_society 2810.42 34 100% 34 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.