Base Difficulty

Base difficulty: Level 170 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 165.20 741 100% 557 2
20th_books 166.94 731 100% 563 2
wiki_math 50.04 1988 100% 1988 1
wiki_geography 73.78 1771 100% 1771 1
wiki_biology 148.28 1329 100% 925 2
wiki_modern_life 161.35 1236 100% 889 2
wiki_arts 123.77 1578 100% 1058 2
wiki_society 130.52 1649 100% 1039 2
wiki_linguistics 89.33 1346 100% 1346 1
wiki_physical_science 34.56 3528 100% 3528 1
wiki_history 198.36 825 100% 625 2
early_modern_science 145.77 1074 100% 767 2
religious_translated 208.76 725 100% 502 2
cooking 127.56 1419 100% 769 2
legal_scotus 293.73 850 100% 442 2
eu_parliament_debates 269.56 670 100% 443 2
openstax_science 67.55 3285 100% 1750 2
openstax_society 237.68 1130 97% 596 2
wpa_life_histories 324.09 541 100% 325 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.