Base Difficulty

Base difficulty: Level 460 edit

Level distribution for noun (collection_things): 278: 1 405: 1 450: 1 460: 9 1000: 5 1010: 1 1030: 1 1050: 3 1060: 1 1078: 2 1080: 1 1120: 1 1205: 3 1211: 1 1214: 1 1220: 3 1223: 2 1399: 33

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: 1704 (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 14.45 4230 80% 5288 downrated 1
20th_books 15.14 3994 80% 4992 downrated 1
wiki_math 0.00 — — — 0
wiki_geography 113.46 952 80% 1190 downrated 1
wiki_biology 20.78 4479 80% 5599 downrated 1
wiki_modern_life 97.73 1186 80% 1482 downrated 1
wiki_arts 31.72 3419 80% 4274 downrated 1
wiki_society 250.42 355 80% 444 downrated 1
wiki_linguistics 0.00 — — — 0
wiki_physical_science 0.00 — — — 0
wiki_history 65.03 1676 80% 2095 downrated 1
early_modern_science 0.00 — — — 0
religious_translated 34.69 2178 80% 2722 downrated 1
cooking 52.28 1508 80% 1885 downrated 1
legal_scotus 62.01 1667 80% 2084 downrated 1
eu_parliament_debates 104.46 918 80% 1148 downrated 1
openstax_science 14.96 5303 80% 6629 downrated 1
openstax_society 548.62 158 80% 198 downrated 1
wpa_life_histories 58.44 1329 80% 1661 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.