Base Difficulty

Base difficulty: Level 105 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 282.95 363 100% 363 1
20th_books 310.25 343 100% 343 1
wiki_math 25.59 3019 100% 3019 1
wiki_geography 0.00 — — — 0
wiki_biology 0.00 — — — 0
wiki_modern_life 32.93 4108 100% 4108 1
wiki_arts 49.32 2626 100% 2626 1
wiki_society 65.03 2075 100% 2075 1
wiki_linguistics 42.10 2534 100% 2534 1
wiki_physical_science 0.00 — — — 0
wiki_history 47.84 2653 100% 2653 1
early_modern_science 168.79 643 100% 643 1
religious_translated 126.22 826 100% 826 1
cooking 62.32 1538 100% 1538 1
legal_scotus 57.67 2020 100% 2020 1
eu_parliament_debates 93.19 1276 100% 1276 1
openstax_science 31.53 3671 100% 3671 1
openstax_society 84.89 1627 100% 1627 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.