Base Difficulty

Base difficulty: Level 185 edit

Level distribution for noun (electronic_device): 109: 1 185: 28 405: 1 1000: 2 1040: 14 1050: 1 1120: 1 1201: 1 1216: 1 1399: 13

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: 1581 (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 5.70 8136 80% 10170 downrated 1
20th_books 6.06 7555 80% 9444 downrated 1
wiki_math 42.50 2883 80% 1895 2
wiki_geography 0.00 — — — 0
wiki_biology 0.00 — — — 0
wiki_modern_life 597.87 253 80% 170 2
wiki_arts 90.92 2307 80% 1524 2
wiki_society 54.33 3389 80% 2463 2
wiki_linguistics 49.44 3232 80% 2122 2
wiki_physical_science 170.28 1141 80% 854 2
wiki_history 27.65 3813 80% 4766 downrated 1
early_modern_science 0.00 — — — 0
religious_translated 0.00 — — — 0
cooking 31.55 2052 80% 2565 downrated 1
legal_scotus 93.74 1959 80% 1286 2
eu_parliament_debates 13.17 4214 80% 5267 downrated 1
openstax_science 158.26 1265 80% 879 2
openstax_society 33.07 3027 80% 3784 downrated 1
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.