Base Difficulty

Base difficulty: Level 4 edit

Level distribution for noun (shape): 4: 11 12: 2 370: 14 1080: 3 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 68.87 1575 97% 1227 2
20th_books 74.27 1499 97% 1122 2
wiki_math 895.58 176 97% 150 2
wiki_geography 55.61 3684 97% 2001 2
wiki_biology 0.00 — — — 0
wiki_modern_life 74.66 1899 97% 1956 downrated 1
wiki_arts 94.46 2300 97% 1373 2
wiki_society 67.55 3279 97% — 2
wiki_linguistics 67.59 2686 97% 1498 2
wiki_physical_science 74.66 1834 97% 1889 downrated 1
wiki_history 83.22 2592 97% 1503 2
early_modern_science 130.72 1187 97% 846 2
religious_translated 13.96 4906 97% 5053 downrated 1
cooking 113.30 1434 97% 822 2
legal_scotus 5.05 9130 97% 9404 downrated 1
eu_parliament_debates 9.83 5107 97% 5260 downrated 1
openstax_science 86.59 2039 97% 1437 2
openstax_society 20.00 5081 97% 5233 downrated 1
wpa_life_histories 73.92 1415 97% 1193 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.