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 33.06 2999 100% 2226 2
20th_books 39.93 2762 100% 1836 2
wiki_math 449.77 358 100% 298 2
wiki_geography 475.60 263 100% 226 2
wiki_biology 624.06 305 100% 186 2
wiki_modern_life 128.06 1076 97% 1108 downrated 1
wiki_arts 622.77 184 100% 163 2
wiki_society 624.75 189 100% 160 2
wiki_linguistics 707.95 202 100% 170 2
wiki_physical_science 476.94 395 100% 287 2
wiki_history 446.75 266 100% 227 2
early_modern_science 81.93 1394 100% 1394 1
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 124.19 1752 100% 963 2
eu_parliament_debates 305.55 684 97% 391 2
openstax_science 507.24 468 97% 266 2
openstax_society 575.26 375 100% 226 2
wpa_life_histories 42.87 2635 100% 1748 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.