Base Difficulty

Base difficulty: Level 480 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: 364 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cefr A1 (1 of 6) 800

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 102.06 1759 100% 848 3
20th_books 67.73 2690 100% 1167 3
wiki_math 944.69 342 100% 147 4
wiki_geography 240.26 777 100% 554 3
wiki_biology 655.94 205 100% 167 4
wiki_modern_life 432.82 529 100% 305 4
wiki_arts 695.10 306 100% 171 4
wiki_society 743.12 306 100% 162 4
wiki_linguistics 549.78 487 100% 237 4
wiki_physical_science 791.18 311 100% 172 4
wiki_history 630.30 270 100% 182 4
early_modern_science 361.08 440 100% 299 4
religious_translated 117.69 1475 100% 802 3
cooking 38.31 2099 100% 2099 1
legal_scotus 434.52 594 100% 290 4
eu_parliament_debates 78.30 1884 100% 1234 2
openstax_science 515.34 494 100% 264 4
openstax_society 407.58 1017 100% 341 4
wpa_life_histories 29.35 4291 100% 2462 2

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.