Base Difficulty

Base difficulty: Level 180 edit

Level distribution for noun (material_substance): 19: 1 179: 26 180: 26 184: 24 1000: 1 1020: 1 1030: 1 1040: 6 1050: 3 1090: 3 1100: 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 8.68 6905 100% 6905 1
20th_books 0.00 — — — 0
wiki_math 0.00 — — — 0
wiki_geography 44.30 2734 100% 2734 1
wiki_biology 31.86 3828 100% 3828 1
wiki_modern_life 440.81 306 100% 252 2
wiki_arts 0.00 — — — 0
wiki_society 38.62 3414 100% 3414 1
wiki_linguistics 0.00 — — — 0
wiki_physical_science 256.66 687 100% 545 2
wiki_history 26.94 4299 100% 4299 1
early_modern_science 58.69 1864 100% 1864 1
religious_translated 17.33 4323 100% 4323 1
cooking 114.43 1030 100% 1030 1
legal_scotus 50.59 2246 100% 2246 1
eu_parliament_debates 69.41 2143 100% 1305 2
openstax_science 141.45 1232 100% 942 2
openstax_society 30.08 3852 100% 3852 1
wpa_life_histories 21.04 3476 100% 3476 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.