Base Difficulty

Base difficulty: Level 1399 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: 1977 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cefr A2 (2 of 6) 2100

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 129.05 460 17% 685 downrated 6
20th_books 71.75 569 17% 1181 downrated 6
wiki_math 26.68 1421 17% 3596 downrated 4
wiki_geography 75.49 526 17% 1744 downrated 4
wiki_biology 35.93 1643 17% 3837 downrated 3
wiki_modern_life 55.01 899 17% 2604 downrated 3
wiki_arts 82.91 398 17% 1480 downrated 4
wiki_society 66.09 738 17% 2051 downrated 4
wiki_linguistics 48.58 859 17% 2675 downrated 3
wiki_physical_science 41.89 1645 17% 3464 downrated 3
wiki_history 152.16 187 17% 709 downrated 5
early_modern_science 47.37 816 17% 2352 downrated 4
religious_translated 38.80 725 17% 2675 downrated 3
cooking 36.43 609 17% 3654 downrated 1
legal_scotus 46.23 1492 17% 2719 downrated 4
eu_parliament_debates 105.42 358 17% 1023 downrated 5
openstax_science 49.91 1198 17% 2687 downrated 4
openstax_society 85.22 578 17% 1619 downrated 4
wpa_life_histories 49.19 771 17% 1671 downrated 5

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.