Base Difficulty

Base difficulty: Level 295 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: 5128 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
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 3.98 3424 17% 20000 capped 1
20th_books 3.93 3398 17% 20000 capped 1
wiki_math 53.12 510 17% 2402 downrated 2
wiki_geography 19.20 1202 17% 7212 downrated 1
wiki_biology 24.17 1266 17% 5635 downrated 2
wiki_modern_life 24.83 1266 17% 5831 downrated 2
wiki_arts 50.00 464 17% 2399 downrated 2
wiki_society 27.65 1193 17% 5026 downrated 2
wiki_linguistics 45.14 755 17% 2904 downrated 2
wiki_physical_science 12.05 1989 17% 8000 capped 1
wiki_history 29.56 914 17% 4452 downrated 2
early_modern_science 11.01 1736 17% 10400 capped 1
religious_translated 2.81 4580 17% 10400 capped 1
cooking 6.76 2021 17% 5200 capped 1
legal_scotus 12.21 2099 17% 8959 downrated 2
eu_parliament_debates 29.00 788 17% 3832 downrated 2
openstax_science 38.24 871 17% 3684 downrated 2
openstax_society 16.67 1894 17% 7857 downrated 2
wpa_life_histories 9.82 1630 17% 9780 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.