Base Difficulty

Base difficulty: Level 480 edit

Level distribution for verb (communication): 10: 2 11: 1 29: 1 119: 2 140: 1 185: 1 196: 1 215: 1 230: 1 295: 2 300: 1 310: 3 329: 1 400: 1 415: 4 455: 2 460: 2 475: 4 480: 52 485: 5 1000: 2 1060: 1 1070: 2 1120: 2 1399: 73

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: 9481 (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 5.46 4689 20% 13078 downrated 2
20th_books 1.60 7343 20% 20000 capped 1
wiki_math 0.00 — — — 0
wiki_geography 0.00 — — — 0
wiki_biology 11.76 2328 20% 9000 capped 1
wiki_modern_life 12.84 2293 20% 10000 capped 1
wiki_arts 0.00 — — — 0
wiki_society 6.61 4084 20% 11000 capped 1
wiki_linguistics 5.70 3588 20% 9000 capped 1
wiki_physical_science 10.39 2651 20% 8000 capped 1
wiki_history 6.64 3957 20% 9000 capped 1
early_modern_science 0.00 — — — 0
religious_translated 0.00 — — — 0
cooking 7.89 2076 20% 5200 capped 1
legal_scotus 12.75 2789 20% 7448 downrated 3
eu_parliament_debates 14.53 2734 20% 5635 downrated 3
openstax_science 6.98 3420 20% 11000 capped 1
openstax_society 4.96 4521 20% 11000 capped 1
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.