Base Difficulty

Base difficulty: Level 1399 edit

Level distribution for noun (material_substance): 19: 1 135: 1 179: 25 180: 26 184: 23 278: 2 314: 1 1000: 1 1020: 1 1030: 1 1040: 6 1050: 3 1078: 4 1090: 3 1100: 1 1399: 23

Per-Language Difficulty Overrides

No difficulty overrides set. The base difficulty level will be used for all languages.

Add Difficulty Override
-1 to exclude, 1-1399 for level
Frequency and Tier Signals
Combined Frequency Rank: 2023 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals

No lemma-tier assignment found yet.

Corpus Frequency
Corpus Freq (per M) Best form Share Zipf rank Forms
19th_books 5.80 4103 31% 13335 downrated 1
20th_books 10.42 2469 31% 8024 downrated 1
wiki_math 5.67 3785 31% 8000 capped 1
wiki_geography 100.82 1105 31% 1383 downrated 2
wiki_biology 25.68 1683 31% 5470 downrated 1
wiki_modern_life 188.25 271 31% 620 downrated 2
wiki_arts 0.00 — — — 0
wiki_society 10.33 4025 31% 11000 capped 1
wiki_linguistics 0.00 — — — 0
wiki_physical_science 328.34 104 31% 303 downrated 2
wiki_history 12.87 3224 31% 9000 capped 1
early_modern_science 166.63 191 31% 621 downrated 1
religious_translated 0.00 — — — 0
cooking 76.95 549 31% 1784 downrated 1
legal_scotus 18.77 2622 31% 4530 downrated 2
eu_parliament_debates 45.31 1138 31% 2099 downrated 2
openstax_science 202.43 151 31% 491 downrated 1
openstax_society 33.42 2867 31% 3360 downrated 2
wpa_life_histories 16.40 1729 31% 5619 downrated 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.