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: 547 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cambridge_yle Movers (2 of 3) 750
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 10.02 6553 100% 6553 1
20th_books 12.62 5372 100% 5372 1
wiki_math 126.68 1700 100% 863 2
wiki_geography 77.83 1818 100% 1818 1
wiki_biology 249.98 508 100% 508 1
wiki_modern_life 180.64 928 100% 768 2
wiki_arts 673.57 212 100% 161 2
wiki_society 586.09 323 100% 194 2
wiki_linguistics 935.36 257 100% 129 2
wiki_physical_science 39.48 3282 100% 3282 1
wiki_history 389.63 492 100% 312 2
early_modern_science 25.81 3772 100% 3772 1
religious_translated 273.63 585 100% 392 2
cooking 31.54 2368 100% 2368 1
legal_scotus 396.56 309 100% 299 2
eu_parliament_debates 299.00 475 100% 396 2
openstax_science 137.89 1034 100% 1034 1
openstax_society 156.11 1550 100% 884 2
wpa_life_histories 64.06 1488 100% 1488 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.