Base Difficulty

Base difficulty: Level 470 edit

Level distribution for verb (development): 30: 1 165: 2 170: 1 179: 1 196: 1 249: 1 299: 2 300: 1 329: 1 470: 7 475: 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 38.34 2229 100% 2229 1
20th_books 39.84 2332 100% 1859 2
wiki_math 162.94 819 100% 819 1
wiki_geography 119.68 1516 100% 1063 2
wiki_biology 94.91 1464 100% 1464 1
wiki_modern_life 309.57 455 100% 389 2
wiki_arts 260.48 530 100% 456 2
wiki_society 562.84 201 100% 179 2
wiki_linguistics 198.90 641 100% 641 1
wiki_physical_science 108.98 1334 100% 1334 1
wiki_history 191.84 726 100% 616 2
early_modern_science 93.47 1228 100% 1228 1
religious_translated 97.41 1034 100% 1034 1
cooking 30.61 2418 100% 2418 1
legal_scotus 376.16 321 100% 321 1
eu_parliament_debates 222.58 558 100% 558 1
openstax_science 89.23 1545 100% 1545 1
openstax_society 341.18 453 100% 381 2
wpa_life_histories 69.55 1692 100% 1237 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.