Base Difficulty

Base difficulty: Level 1226 edit

Level distribution for noun (spatial_division): 249: 11 254: 2 350: 1 460: 1 1078: 1 1200: 4 1201: 1 1202: 3 1203: 2 1204: 9 1206: 3 1207: 4 1208: 1 1209: 5 1210: 4 1211: 4 1212: 1 1213: 1 1217: 2 1219: 1 1220: 1 1226: 5 1399: 9

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: 1940 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600

Rank used = synthetic rank this tier contributes to the combined frequency rank (lower = more common).

Corpus Frequency
Corpus Freq (per M) Best form Share Zipf rank Forms
19th_books 11.47 5912 100% 5912 1
20th_books 0.00 — — — 0
wiki_math 1044.55 161 100% 126 2
wiki_geography 105.50 1308 100% 1308 1
wiki_biology 0.00 — — — 0
wiki_modern_life 34.42 4025 100% 4025 1
wiki_arts 43.86 3115 100% 3115 1
wiki_society 35.17 3876 100% 3876 1
wiki_linguistics 0.00 — — — 0
wiki_physical_science 0.00 — — — 0
wiki_history 92.84 1439 100% 1439 1
early_modern_science 0.00 — — — 0
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 16.39 5146 100% 5146 1
eu_parliament_debates 22.93 3429 100% 3429 1
openstax_science 20.35 5029 100% 5029 1
openstax_society 82.60 1663 100% 1663 1
wpa_life_histories 8.24 6941 100% 6941 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.