Base Difficulty

Base difficulty: Level 221 edit

Level distribution for noun (concept_idea): 19: 2 20: 3 26: 1 27: 1 221: 29 270: 31 274: 37 275: 31 280: 29 380: 2 1000: 1 1030: 1 1060: 5 1070: 6 1110: 7 1120: 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 52.10 1703 100% 1703 1
20th_books 49.36 1720 100% 1720 1
wiki_math 344.32 406 100% 406 1
wiki_geography 352.67 309 100% 309 1
wiki_biology 39.47 3300 100% 3300 1
wiki_modern_life 126.93 1133 100% 1133 1
wiki_arts 84.36 1575 100% 1575 1
wiki_society 278.14 395 100% 395 1
wiki_linguistics 263.86 480 100% 480 1
wiki_physical_science 0.00 — — — 0
wiki_history 378.92 252 100% 252 1
early_modern_science 94.37 1220 100% 1220 1
religious_translated 190.22 560 100% 560 1
cooking 129.16 923 100% 923 1
legal_scotus 1236.66 83 100% 83 1
eu_parliament_debates 170.28 699 100% 699 1
openstax_science 81.72 1688 100% 1688 1
openstax_society 285.57 453 100% 453 1
wpa_life_histories 50.53 1788 100% 1788 1

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.