Base Difficulty

Base difficulty: Level 455 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 63.54 2361 100% 1229 3
20th_books 44.12 2652 100% 1695 2
wiki_math 197.85 1214 100% 547 3
wiki_geography 25.63 4238 100% 4238 1
wiki_biology 241.97 1143 100% 563 3
wiki_modern_life 95.89 2906 100% 1494 2
wiki_arts 115.09 1899 100% 1135 2
wiki_society 213.07 1554 100% 620 4
wiki_linguistics 585.45 505 100% 213 4
wiki_physical_science 129.41 2132 100% 1071 2
wiki_history 52.79 2427 100% 2427 1
early_modern_science 148.09 1305 100% 758 2
religious_translated 98.79 1388 100% 961 2
cooking 0.00 — — — 0
legal_scotus 173.19 1681 100% 644 4
eu_parliament_debates 24.12 4188 100% 2348 2
openstax_science 78.44 2239 100% 1552 2
openstax_society 60.65 3093 100% 1924 2
wpa_life_histories 11.67 5382 100% 5382 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.