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: 1532 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cambridge_yle Flyers (3 of 3) 1200
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 163.69 672 80% 565 3
20th_books 124.77 850 80% 747 3
wiki_math 176.93 1026 80% 629 4
wiki_geography 0.00 — — — 0
wiki_biology 37.24 2894 80% 3617 downrated 1
wiki_modern_life 34.52 3334 80% 4168 downrated 1
wiki_arts 43.87 2535 80% 3169 downrated 1
wiki_society 31.27 3521 80% 4401 downrated 1
wiki_linguistics 37.40 2525 80% 3156 downrated 1
wiki_physical_science 33.53 3120 80% 3900 downrated 1
wiki_history 39.53 2754 80% 3442 downrated 1
early_modern_science 85.10 1556 80% 1330 2
religious_translated 75.49 1963 80% 1208 3
cooking 56.34 1288 67% 1932 downrated 1
legal_scotus 59.85 2404 80% 1695 3
eu_parliament_debates 83.58 1349 67% 1273 2
openstax_science 75.42 2621 80% 1561 3
openstax_society 29.76 3287 80% 4109 downrated 1
wpa_life_histories 33.04 3124 67% 2421 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.