Base Difficulty

Base difficulty: Level 214 edit

Level distribution for verb (perception): 5: 1 8: 2 185: 1 205: 1 214: 12 230: 1 265: 1 279: 1 455: 1 1040: 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 166.62 766 100% 552 2
20th_books 81.18 1399 100% 1046 2
wiki_math 158.28 942 100% 746 2
wiki_geography 64.26 2026 100% 2026 1
wiki_biology 246.68 493 100% 493 1
wiki_modern_life 79.83 1810 100% 1810 1
wiki_arts 45.63 2807 100% 2807 1
wiki_society 167.32 1059 100% 782 2
wiki_linguistics 81.47 1464 100% 1464 1
wiki_physical_science 628.90 196 100% 182 2
wiki_history 78.02 1659 100% 1659 1
early_modern_science 511.58 318 100% 210 2
religious_translated 185.15 1043 100% 544 2
cooking 0.00 — — — 0
legal_scotus 167.32 915 100% 734 2
eu_parliament_debates 58.58 2702 100% 1436 2
openstax_science 0.00 — — — 0
openstax_society 125.00 1888 100% 1086 2
wpa_life_histories 29.51 3516 100% 2303 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.