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 1150.51 110 100% 110 1
20th_books 936.31 140 100% 140 1
wiki_math 2086.84 53 100% 53 1
wiki_geography 1416.75 64 100% 64 1
wiki_biology 2517.62 42 100% 42 1
wiki_modern_life 2111.97 43 100% 43 1
wiki_arts 1694.06 55 100% 55 1
wiki_society 2049.00 44 100% 44 1
wiki_linguistics 2161.38 51 100% 51 1
wiki_physical_science 2608.75 34 100% 34 1
wiki_history 1293.49 72 100% 72 1
early_modern_science 3294.79 36 100% 36 1
religious_translated 1960.85 65 100% 65 1
cooking 1089.96 146 100% 146 1
legal_scotus 1461.10 70 100% 70 1
eu_parliament_debates 2493.28 40 100% 40 1
openstax_science 3413.87 25 100% 25 1
openstax_society 2883.36 33 100% 33 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.