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: 2097 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
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 22.79 5143 80% 2830 3
20th_books 12.79 6636 80% 4598 2
wiki_math 37.88 2106 80% 2632 downrated 1
wiki_geography 40.10 2747 80% 3434 downrated 1
wiki_biology 38.68 2807 80% 3509 downrated 1
wiki_modern_life 102.19 1893 80% 1442 2
wiki_arts 60.00 1846 80% 2308 downrated 1
wiki_society 164.26 937 80% 815 3
wiki_linguistics 94.16 1108 80% 1385 downrated 1
wiki_physical_science 40.96 2674 80% 3342 downrated 1
wiki_history 141.65 889 80% 921 downrated 2
early_modern_science 35.84 2462 80% 3077 downrated 1
religious_translated 40.42 2757 80% 2124 2
cooking 0.00 — — — 0
legal_scotus 75.93 1969 80% 1403 3
eu_parliament_debates 85.50 1723 80% 1104 3
openstax_science 42.89 4058 80% 2578 2
openstax_society 128.31 1387 80% 1015 3
wpa_life_histories 8.25 6386 80% 7982 downrated 1

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.