Base Difficulty

Base difficulty: Level 1399 edit

Level distribution for noun (legal_concept): 460: 1 1060: 1 1120: 6 1130: 47 1399: 48

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: 311 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
cambridge_yle Flyers (3 of 3) 1200
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 318.55 186 44% 369 downrated 2
20th_books 406.55 156 44% 310 downrated 2
wiki_math 347.03 171 44% 385 downrated 1
wiki_geography 261.59 647 44% 498 2
wiki_biology 84.20 711 44% 1600 downrated 1
wiki_modern_life 257.81 477 44% 504 downrated 2
wiki_arts 200.70 630 44% 662 downrated 2
wiki_society 827.62 155 100% 118 2
wiki_linguistics 185.32 432 44% 680 downrated 2
wiki_physical_science 79.29 812 44% 1827 downrated 1
wiki_history 306.61 521 44% 395 2
early_modern_science 108.29 447 44% 1006 downrated 1
religious_translated 190.63 272 44% 612 downrated 1
cooking 120.17 524 44% 1179 downrated 1
legal_scotus 1296.38 82 44% 79 2
eu_parliament_debates 1376.73 110 100% 83 2
openstax_science 232.13 226 44% 459 downrated 2
openstax_society 965.51 159 100% 113 2
wpa_life_histories 588.25 113 44% 234 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.