Base Difficulty

Base difficulty: Level 485 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: 992 (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 121.58 1334 80% 696 5
20th_books 80.98 1940 40% 949 5
wiki_math 469.65 322 80% 281 4
wiki_geography 25.51 4183 80% 5229 downrated 1
wiki_biology 62.49 2127 80% 2127 2
wiki_modern_life 57.37 2609 80% 2511 2
wiki_arts 159.17 1574 80% 861 4
wiki_society 126.84 1064 80% 1079 downrated 2
wiki_linguistics 357.99 685 40% 361 5
wiki_physical_science 170.18 751 80% 842 downrated 2
wiki_history 106.88 1113 80% 1224 downrated 2
early_modern_science 160.23 1524 80% 668 5
religious_translated 90.90 1998 40% 971 4
cooking 0.00 — — — 0
legal_scotus 271.91 680 40% 408 8
eu_parliament_debates 259.45 647 40% 412 5
openstax_science 162.42 948 80% 834 3
openstax_society 105.49 2023 40% 1232 3
wpa_life_histories 23.81 3785 40% 2970 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.