Base Difficulty

Base difficulty: Level 214 edit

Level distribution for verb (existence): 10: 1 23: 1 135: 1 170: 1 179: 1 214: 8 215: 1 220: 1 329: 1 415: 1 475: 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
Source Tier Rank used
cambridge_yle Flyers (3 of 3) 1200

Rank used = synthetic rank this tier contributes to the combined frequency rank (lower = more common).

Corpus Frequency
Corpus Freq (per M) Best form Share Zipf rank Forms
19th_books 368.63 371 100% 272 2
20th_books 200.70 674 100% 475 2
wiki_math 272.34 706 100% 467 2
wiki_geography 117.25 1815 100% 1079 2
wiki_biology 469.45 365 100% 261 2
wiki_modern_life 235.16 1162 100% 612 2
wiki_arts 505.30 391 100% 222 2
wiki_society 267.75 797 100% 481 2
wiki_linguistics 378.69 423 100% 326 2
wiki_physical_science 318.86 615 100% 443 2
wiki_history 379.91 392 100% 283 2
early_modern_science 673.52 264 100% 158 3
religious_translated 295.76 712 100% 362 2
cooking 27.21 2573 100% 2573 1
legal_scotus 146.56 1266 100% 842 2
eu_parliament_debates 92.30 1566 100% 1088 2
openstax_science 236.14 728 100% 584 2
openstax_society 194.31 1237 100% 718 2
wpa_life_histories 78.01 1759 100% 1099 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.