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: 696 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600
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 38.60 2505 80% 2121 2
20th_books 37.18 2462 80% 2106 2
wiki_math 59.89 1955 80% 1532 2
wiki_geography 137.42 1553 80% 1031 2
wiki_biology 55.30 3549 80% 2273 2
wiki_modern_life 80.38 2398 80% 1802 2
wiki_arts 124.90 1766 80% 1105 2
wiki_society 311.88 645 80% 404 2
wiki_linguistics 104.21 1937 80% 1217 2
wiki_physical_science 24.59 3924 80% 4905 downrated 1
wiki_history 221.90 860 80% 589 2
early_modern_science 49.18 2576 80% 2061 2
religious_translated 35.43 2145 80% 2681 downrated 1
cooking 0.00 — — — 0
legal_scotus 1709.40 84 80% 61 2
eu_parliament_debates 62.01 2258 80% 1539 2
openstax_science 15.95 5066 80% 6332 downrated 1
openstax_society 199.56 1111 80% 711 2
wpa_life_histories 71.74 1549 80% 1232 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.