Base Difficulty

Base difficulty: Level 26 edit

Level distribution for noun (quantitative_concept): 20: 1 26: 1 162: 20 276: 22 380: 20 390: 1 456: 1 460: 1 1000: 1 1050: 2 1070: 2 1080: 5 1090: 1 1110: 1 1120: 1 1202: 2 1203: 1 1204: 2 1206: 1 1210: 2 1211: 1 1213: 7 1218: 1 1225: 2 1226: 1 1399: 21

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: 10184 (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 2.18 3978 11% 20000 capped 1
20th_books 0.89 7326 11% 20000 capped 1
wiki_math 12.16 1412 11% 8000 capped 2
wiki_geography 18.14 1536 11% 7787 downrated 2
wiki_biology 0.00 — — — 0
wiki_modern_life 0.00 — — — 0
wiki_arts 0.00 — — — 0
wiki_society 0.00 — — — 0
wiki_linguistics 0.00 — — — 0
wiki_physical_science 0.00 — — — 0
wiki_history 0.00 — — — 0
early_modern_science 1.98 4984 11% 10400 capped 1
religious_translated 1.55 5199 11% 10400 capped 1
cooking 0.00 — — — 0
legal_scotus 2.68 5220 11% 20000 capped 2
eu_parliament_debates 2.60 3393 11% 11000 capped 1
openstax_science 2.58 4585 11% 11000 capped 1
openstax_society 9.36 2800 11% 11000 capped 2
wpa_life_histories 7.65 1376 11% 12384 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.