Base Difficulty

Base difficulty: Level 309 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 80.29 1802 100% 1073 2
20th_books 52.48 2138 100% 1461 2
wiki_math 139.66 1397 100% 783 2
wiki_geography 555.27 364 100% 205 2
wiki_biology 537.92 446 100% 226 2
wiki_modern_life 719.80 279 100% 143 2
wiki_arts 208.72 1070 100% 631 2
wiki_society 463.32 483 100% 251 2
wiki_linguistics 150.01 1522 100% 793 2
wiki_physical_science 694.24 321 100% 191 2
wiki_history 263.60 691 100% 462 2
early_modern_science 296.18 701 100% 372 2
religious_translated 154.98 1063 100% 644 2
cooking 36.28 2157 100% 2157 1
legal_scotus 196.88 1115 100% 650 2
eu_parliament_debates 543.66 360 100% 219 3
openstax_science 0.00 — — — 0
openstax_society 956.72 240 100% 120 3
wpa_life_histories 42.78 3065 100% 1724 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.