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: 297 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
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 306.93 459 80% 315 4
20th_books 241.39 596 80% 398 4
wiki_math 1002.44 158 80% 128 4
wiki_geography 226.03 626 80% 575 2
wiki_biology 573.83 176 80% 189 downrated 2
wiki_modern_life 356.21 278 80% 305 downrated 3
wiki_arts 381.84 308 80% 297 3
wiki_society 551.35 169 80% 180 downrated 3
wiki_linguistics 707.78 162 80% 168 downrated 4
wiki_physical_science 300.81 397 80% 441 downrated 2
wiki_history 574.15 273 80% 200 3
early_modern_science 359.11 307 80% 302 3
religious_translated 428.90 309 80% 249 4
cooking 265.03 455 80% 569 downrated 1
legal_scotus 903.16 141 80% 122 4
eu_parliament_debates 638.72 150 80% 182 downrated 2
openstax_science 316.10 388 80% 394 downrated 3
openstax_society 449.00 249 80% 259 downrated 3
wpa_life_histories 238.28 626 80% 426 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.