Base Difficulty

Base difficulty: Level 1399 edit

Level distribution for verb (existence): 3: 2 10: 1 23: 1 135: 1 170: 1 179: 1 214: 8 215: 1 220: 1 329: 1 415: 1 475: 1 1399: 6

Per-Language Difficulty Overrides

No difficulty overrides set. The base difficulty level will be used for all languages.

Add Difficulty Override
-1 to exclude, 1-1399 for level
Frequency and Tier Signals
Combined Frequency Rank: 339 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals

No lemma-tier assignment found yet.

Corpus Frequency
Corpus Freq (per M) Best form Share Zipf rank Forms
19th_books 79.77 1272 67% 1033 4
20th_books 65.06 1404 67% 1325 3
wiki_math 1011.15 188 67% 131 3
wiki_geography 501.62 387 67% 257 4
wiki_biology 538.78 366 67% 240 4
wiki_modern_life 600.75 309 67% 200 4
wiki_arts 288.28 674 67% 464 4
wiki_society 528.03 291 67% 229 4
wiki_linguistics 450.17 400 67% 286 4
wiki_physical_science 1020.97 179 67% 118 4
wiki_history 454.44 403 67% 273 4
early_modern_science 396.20 359 67% 274 3
religious_translated 54.40 2037 67% 1739 2
cooking 150.21 873 67% 777 2
legal_scotus 496.48 269 67% 234 6
eu_parliament_debates 514.37 299 67% 223 5
openstax_science 1063.48 156 67% 102 4
openstax_society 631.18 215 67% 196 4
wpa_life_histories 48.13 2078 67% 1593 3

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.