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 119.70 1380 100% 750 2
20th_books 71.75 2185 100% 1119 2
wiki_math 116.38 1343 100% 901 2
wiki_geography 81.75 2234 100% 1471 2
wiki_biology 58.68 2305 100% 2305 1
wiki_modern_life 152.07 1389 100% 948 2
wiki_arts 95.00 2312 100% 1364 2
wiki_society 121.39 1848 100% 1114 2
wiki_linguistics 37.64 2741 100% 2741 1
wiki_physical_science 47.17 2776 100% 2776 1
wiki_history 190.26 1195 100% 675 2
early_modern_science 137.70 1372 100% 811 2
religious_translated 68.03 2360 100% 1292 2
cooking 0.00 — — — 0
legal_scotus 131.26 1522 100% 922 2
eu_parliament_debates 83.34 1965 100% 1163 2
openstax_science 85.08 2008 100% 1446 2
openstax_society 136.97 1864 100% 1004 2
wpa_life_histories 30.43 3970 100% 2217 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.