Base Difficulty

Base difficulty: Level 400 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: 1343 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cefr B1 (3 of 6) 4200

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 0.00 — — — 0
20th_books 0.00 — — — 0
wiki_math 812.27 137 67% 158 downrated 2
wiki_geography 44.81 2090 67% 3135 downrated 1
wiki_biology 31.51 2848 67% 4272 downrated 1
wiki_modern_life 123.38 1034 67% 1157 downrated 2
wiki_arts 92.72 1468 67% 1493 downrated 2
wiki_society 234.74 464 67% 521 downrated 2
wiki_linguistics 92.79 1324 67% 1343 downrated 2
wiki_physical_science 285.82 402 67% 475 downrated 2
wiki_history 19.61 4361 67% 6542 downrated 1
early_modern_science 13.92 4392 67% 6588 downrated 1
religious_translated 15.87 3562 67% 5343 downrated 1
cooking 0.00 — — — 0
legal_scotus 216.69 436 67% 564 downrated 2
eu_parliament_debates 93.42 1034 67% 1181 downrated 2
openstax_science 94.48 1167 67% 1420 downrated 2
openstax_society 70.82 1779 67% 1846 downrated 2
wpa_life_histories 0.00 — — — 0

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.