Base Difficulty

Base difficulty: Level 19 edit

Level distribution for adverb (style): -1: 1 6: 1 19: 4 20: 4 105: 46 1080: 1 1202: 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 394.90 278 100% 278 1
20th_books 457.52 255 100% 255 1
wiki_math 2934.02 35 100% 35 1
wiki_geography 3583.98 25 100% 25 1
wiki_biology 3850.90 27 100% 27 1
wiki_modern_life 3617.00 29 100% 29 1
wiki_arts 3166.61 29 100% 29 1
wiki_society 3317.24 27 100% 27 1
wiki_linguistics 4191.41 28 100% 28 1
wiki_physical_science 3213.11 28 100% 28 1
wiki_history 3117.77 29 100% 29 1
early_modern_science 1128.56 97 100% 97 1
religious_translated 1555.92 81 100% 81 1
cooking 783.38 203 100% 203 1
legal_scotus 2000.30 49 100% 49 1
eu_parliament_debates 3830.78 27 100% 27 1
openstax_science 2608.74 35 100% 35 1
openstax_society 2619.32 38 100% 38 1
wpa_life_histories 589.09 204 100% 204 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.