Base Difficulty

Base difficulty: Level 470 edit

Level distribution for verb (destruction_action): 110: 1 120: 1 160: 1 172: 1 179: 1 265: 1 299: 1 314: 1 470: 4

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 282.02 599 50% 328 4
20th_books 318.48 587 50% 307 4
wiki_math 31.41 3295 100% 2272 2
wiki_geography 88.60 1839 100% 1439 2
wiki_biology 92.51 2236 50% 1357 3
wiki_modern_life 122.28 2436 50% 1165 3
wiki_arts 145.59 2152 50% 870 4
wiki_society 82.60 3695 50% 1553 3
wiki_linguistics 106.95 1715 50% 1004 3
wiki_physical_science 148.25 1851 50% 920 3
wiki_history 205.04 873 100% 602 3
early_modern_science 178.95 808 50% 584 4
religious_translated 146.99 940 50% 628 4
cooking 167.69 626 50% 698 downrated 2
legal_scotus 37.47 5062 100% 1792 4
eu_parliament_debates 24.74 3715 50% 2626 2
openstax_science 154.31 1547 50% 853 3
openstax_society 95.60 2731 100% 1287 3
wpa_life_histories 293.69 536 100% 340 4

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.