Base Difficulty

Base difficulty: Level 415 edit

Level distribution for verb (change): 22: 4 28: 1 109: 1 140: 1 162: 2 194: 1 254: 1 255: 1 309: 2 311: 1 321: 16 410: 2 415: 2 475: 5 1040: 1 1090: 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 69.44 2406 100% 1221 2
20th_books 52.91 2535 100% 1466 2
wiki_math 145.48 1403 100% 762 2
wiki_geography 335.31 841 100% 375 4
wiki_biology 416.21 413 100% 300 2
wiki_modern_life 340.81 445 100% 354 2
wiki_arts 186.25 894 100% 687 2
wiki_society 250.80 600 100% 488 2
wiki_linguistics 596.12 266 100% 195 4
wiki_physical_science 318.36 840 100% 453 2
wiki_history 167.22 1094 100% 758 2
early_modern_science 350.80 627 100% 305 4
religious_translated 130.93 1346 100% 754 2
cooking 229.01 659 100% 521 2
legal_scotus 269.43 517 100% 444 3
eu_parliament_debates 70.00 1609 100% 1609 1
openstax_science 49.80 3639 100% 2175 2
openstax_society 132.43 1326 100% 1008 2
wpa_life_histories 45.53 3147 100% 1641 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.