Base Difficulty

Base difficulty: Level 460 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: 138 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600
cambridge_yle Movers (2 of 3) 750
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 625.00 270 80% 166 5
20th_books 690.31 256 80% 158 4
wiki_math 2065.47 43 80% 52 downrated 3
wiki_geography 682.18 122 80% 147 downrated 2
wiki_biology 1405.06 59 80% 67 downrated 4
wiki_modern_life 1165.73 61 80% 73 downrated 3
wiki_arts 971.28 85 80% 94 downrated 4
wiki_society 909.36 92 80% 101 downrated 4
wiki_linguistics 992.79 101 80% 112 downrated 4
wiki_physical_science 1205.84 60 80% 75 downrated 1
wiki_history 800.30 115 80% 123 downrated 4
early_modern_science 726.76 182 80% 146 4
religious_translated 1152.23 139 80% 107 5
cooking 245.53 591 80% 469 3
legal_scotus 243.83 1128 80% 517 4
eu_parliament_debates 555.07 382 80% 218 4
openstax_science 1737.09 49 80% 57 downrated 4
openstax_society 775.12 150 80% 145 4
wpa_life_histories 805.43 217 80% 143 4

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.