Base Difficulty

Base difficulty: Level 5 edit

Level distribution for noun (family_relation): 5: 11 18: 8 102: 7 302: 10 315: 7 1002: 12 1050: 1 1120: 3 1399: 1

Per-Language Difficulty Overrides
Language Override Level Effective Level Notes Actions
Italian Level 1002 Level 1002 -
Portuguese Level 1002 Level 1002 -
Add Difficulty Override
-1 to exclude, 1-1399 for level
Frequency and Tier Signals
Combined Frequency Rank: 441 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600
cambridge_yle Starters (1 of 3) 325
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 385.78 264 50% 273 downrated 4
20th_books 401.50 275 50% 273 4
wiki_math 10.94 3397 50% 6794 downrated 1
wiki_geography 104.93 742 50% 1251 downrated 2
wiki_biology 45.48 1533 50% 3066 downrated 1
wiki_modern_life 350.90 230 50% 311 downrated 4
wiki_arts 244.98 461 50% 513 downrated 3
wiki_society 366.55 217 50% 290 downrated 3
wiki_linguistics 389.73 243 50% 316 downrated 4
wiki_physical_science 20.74 3140 50% 6280 downrated 1
wiki_history 316.43 264 50% 352 downrated 3
early_modern_science 95.26 950 50% 1208 downrated 2
religious_translated 470.68 169 50% 258 downrated 2
cooking 43.94 1245 50% 2490 downrated 1
legal_scotus 252.10 543 50% 491 4
eu_parliament_debates 196.70 454 50% 606 downrated 3
openstax_science 70.61 1407 50% 1887 downrated 2
openstax_society 784.91 90 50% 137 downrated 4
wpa_life_histories 607.85 144 50% 208 downrated 4

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.