Base Difficulty

Base difficulty: Level 1399 edit

Level distribution for noun (technology_digital): 140: 21 360: 1 1040: 13 1399: 40

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: 4261 (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 14.34 1498 20% 6038 downrated 2
20th_books 13.21 1586 20% 6480 downrated 2
wiki_math 95.82 329 20% 1419 downrated 2
wiki_geography 6.90 3905 20% 9000 capped 1
wiki_biology 22.35 1632 20% 5987 downrated 2
wiki_modern_life 30.95 1156 20% 4628 downrated 2
wiki_arts 24.94 1084 20% 5420 downrated 1
wiki_society 48.43 675 20% 2676 downrated 2
wiki_linguistics 78.59 403 20% 1624 downrated 2
wiki_physical_science 27.33 1069 20% 5345 downrated 1
wiki_history 12.18 2250 20% 9000 capped 1
early_modern_science 67.10 407 20% 1640 downrated 2
religious_translated 9.63 2006 20% 10030 downrated 1
cooking 14.42 1410 20% 5200 capped 1
legal_scotus 53.29 762 20% 2451 downrated 2
eu_parliament_debates 22.23 1233 20% 4848 downrated 2
openstax_science 29.24 1143 20% 4586 downrated 2
openstax_society 46.01 774 20% 3026 downrated 2
wpa_life_histories 12.12 1771 20% 6909 downrated 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.