Base Difficulty

Base difficulty: Level 350 edit

Level distribution for noun (honorific): 315: 12 350: 1 1030: 4 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, 1-1399 for level
Frequency and Tier Signals
Combined Frequency Rank: 967 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cefr B1 (3 of 6) 4200

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 12.53 6800 100% 4967 2
20th_books 46.93 2159 100% 1773 2
wiki_math 0.00 — — — 0
wiki_geography 387.84 455 100% 318 2
wiki_biology 0.00 — — — 0
wiki_modern_life 46.80 3982 100% 2926 2
wiki_arts 70.19 2680 100% 1959 2
wiki_society 161.66 1157 100% 862 2
wiki_linguistics 34.39 3138 100% 3138 1
wiki_physical_science 0.00 — — — 0
wiki_history 317.49 522 100% 378 2
early_modern_science 17.85 4942 100% 4942 1
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 147.45 917 100% 864 2
eu_parliament_debates 1264.12 92 100% 91 2
openstax_science 0.00 — — — 0
openstax_society 488.09 303 44% 267 4
wpa_life_histories 72.75 1856 100% 1290 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.