Base Difficulty

Base difficulty: Level 1399 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: 1468 (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 0.00 — — — 0
20th_books 0.00 — — — 0
wiki_math 581.35 227 80% 226 2
wiki_geography 30.61 3551 80% 4439 downrated 1
wiki_biology 58.73 3311 80% 2177 2
wiki_modern_life 165.54 1378 80% 893 2
wiki_arts 134.58 1542 80% 1029 2
wiki_society 205.39 1038 80% 660 2
wiki_linguistics 326.31 633 80% 405 2
wiki_physical_science 81.95 2406 80% 1663 2
wiki_history 0.00 — — — 0
early_modern_science 0.00 — — — 0
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 163.48 1031 80% 796 2
eu_parliament_debates 75.26 1920 80% 1345 2
openstax_science 92.04 1712 80% 1424 2
openstax_society 143.06 1255 80% 975 2
wpa_life_histories 0.00 — — — 0

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.