Base Difficulty

Base difficulty: Level 10 edit

Level distribution for conjunction (conjunction_other): 6: 1 9: 5 10: 2 11: 2 13: 5

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 794.62 157 100% 157 1
20th_books 800.41 164 100% 164 1
wiki_math 716.55 189 100% 189 1
wiki_geography 1093.49 89 100% 89 1
wiki_biology 1517.52 62 100% 62 1
wiki_modern_life 1337.80 62 100% 62 1
wiki_arts 1297.42 68 100% 68 1
wiki_society 1236.43 65 100% 65 1
wiki_linguistics 1186.23 91 100% 91 1
wiki_physical_science 1009.26 91 100% 91 1
wiki_history 1349.62 69 100% 69 1
early_modern_science 778.34 133 100% 133 1
religious_translated 570.26 218 100% 218 1
cooking 702.47 226 100% 226 1
legal_scotus 663.09 151 100% 151 1
eu_parliament_debates 381.93 323 100% 323 1
openstax_science 766.98 124 100% 124 1
openstax_society 1558.92 63 100% 63 1
wpa_life_histories 880.96 149 100% 149 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.