Base Difficulty

Base difficulty: Level 1399 edit

Level distribution for noun (communication_information): 5: 1 19: 6 295: 28 370: 1 400: 36 420: 1 440: 32 460: 1 470: 2 1000: 8 1040: 1 1060: 2 1070: 10 1080: 1 1110: 16 1120: 2 1207: 1 1220: 1 1399: 83

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: 6471 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cefr B2 (4 of 6) 6900

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 12.34 1196 14% 7165 downrated 2
20th_books 7.57 1870 14% 10845 downrated 2
wiki_math 3.78 3061 14% 8000 capped 1
wiki_geography 0.00 — — — 0
wiki_biology 4.04 4226 14% 9000 capped 1
wiki_modern_life 6.57 3145 14% 10000 capped 1
wiki_arts 6.73 2913 14% 10000 capped 1
wiki_society 21.93 1210 14% 6300 downrated 2
wiki_linguistics 9.53 1913 14% 9000 capped 1
wiki_physical_science 4.46 3885 14% 8000 capped 1
wiki_history 8.92 2194 14% 9000 capped 1
early_modern_science 29.11 789 14% 3875 downrated 2
religious_translated 33.18 680 14% 3201 downrated 2
cooking 5.47 2112 14% 5200 capped 1
legal_scotus 21.53 903 14% 5712 downrated 2
eu_parliament_debates 110.27 233 14% 1134 downrated 2
openstax_science 0.00 — — — 0
openstax_society 7.97 2407 14% 11000 capped 1
wpa_life_histories 3.04 3457 14% 20000 capped 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.