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: 7348 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
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 2.38 3429 10% 20000 capped 1
20th_books 1.72 4283 10% 20000 capped 1
wiki_math 2.53 3155 10% 8000 capped 1
wiki_geography 13.00 1530 10% 9000 capped 2
wiki_biology 0.00 — — — 0
wiki_modern_life 11.81 2001 10% 10000 capped 2
wiki_arts 38.21 363 10% 3004 downrated 2
wiki_society 19.64 999 10% 6988 downrated 2
wiki_linguistics 16.34 1311 10% 7868 downrated 2
wiki_physical_science 0.00 — — — 0
wiki_history 43.39 310 10% 2587 downrated 2
early_modern_science 3.22 3189 10% 10400 capped 1
religious_translated 7.19 1827 10% 10400 capped 2
cooking 0.00 — — — 0
legal_scotus 17.45 774 10% 7161 downrated 2
eu_parliament_debates 2.48 3270 10% 11000 capped 1
openstax_science 0.00 — — — 0
openstax_society 3.95 3125 10% 11000 capped 1
wpa_life_histories 17.56 650 10% 5762 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.