Base Difficulty

Base difficulty: Level 230 edit

Level distribution for verb (perception): 5: 1 8: 2 185: 1 205: 1 214: 12 230: 1 265: 1 279: 1 455: 1 1040: 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

No lemma-tier assignment found yet.

Corpus Frequency
Corpus Freq (per M) Best form Share Zipf rank Forms
19th_books 149.33 885 100% 609 2
20th_books 155.08 852 100% 591 2
wiki_math 129.19 1000 100% 1000 1
wiki_geography 164.19 767 100% 767 1
wiki_biology 187.64 703 100% 703 1
wiki_modern_life 104.13 1390 100% 1390 1
wiki_arts 150.84 842 100% 842 1
wiki_society 101.34 1682 100% 1288 2
wiki_linguistics 62.37 1867 100% 1867 1
wiki_physical_science 474.51 258 100% 258 1
wiki_history 211.78 521 100% 521 1
early_modern_science 373.50 366 100% 291 2
religious_translated 57.58 2402 100% 1482 2
cooking 0.00 — — — 0
legal_scotus 59.34 2595 100% 1693 2
eu_parliament_debates 25.82 3956 100% 2269 2
openstax_science 37.77 3188 100% 3188 1
openstax_society 122.12 1629 100% 1084 2
wpa_life_histories 52.39 2053 100% 1522 2

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.