Base Difficulty

Base difficulty: Level 10 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 Starters (1 of 3) 325

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 1984.80 66 100% 66 1
20th_books 1791.21 72 100% 72 1
wiki_math 2161.29 50 100% 50 1
wiki_geography 1620.08 53 100% 53 1
wiki_biology 3593.39 30 100% 30 1
wiki_modern_life 2635.09 38 100% 38 1
wiki_arts 2032.53 50 100% 50 1
wiki_society 2531.70 38 100% 38 1
wiki_linguistics 3642.90 31 100% 31 1
wiki_physical_science 2116.85 46 100% 46 1
wiki_history 1579.45 56 100% 56 1
early_modern_science 2676.42 48 100% 48 1
religious_translated 1075.93 121 100% 121 1
cooking 1606.62 104 100% 104 1
legal_scotus 1050.33 94 100% 94 1
eu_parliament_debates 1315.41 88 100% 88 1
openstax_science 1990.25 46 100% 46 1
openstax_society 2246.27 42 100% 42 1
wpa_life_histories 2638.08 52 100% 52 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.