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: 940 (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 34.55 2389 50% 2327 3
20th_books 39.96 2055 50% 2011 3
wiki_math 49.93 2455 50% 1731 3
wiki_geography 213.93 666 57% 620 3
wiki_biology 228.28 423 57% 550 downrated 3
wiki_modern_life 160.91 862 57% 879 downrated 3
wiki_arts 78.78 1850 57% 1722 3
wiki_society 251.08 792 57% 538 4
wiki_linguistics 98.31 1425 57% 1256 3
wiki_physical_science 160.52 720 57% 877 downrated 3
wiki_history 181.92 800 57% 727 3
early_modern_science 27.87 3210 50% 3507 downrated 2
religious_translated 27.28 3335 57% 3159 2
cooking 0.00 — — — 0
legal_scotus 185.73 752 50% 676 4
eu_parliament_debates 1155.97 59 50% 103 downrated 4
openstax_science 102.20 2057 50% 1243 4
openstax_society 181.75 1004 50% 758 4
wpa_life_histories 44.01 2387 50% 1824 3

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.