Base Difficulty

Base difficulty: Level 16 edit

Level distribution for adjective (personal_quality): 16: 18 340: 1 359: 20 360: 1 1000: 1 1120: 4 1399: 4

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: 1442 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
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 95.19 1082 100% 941 2
20th_books 78.66 1297 100% 1144 2
wiki_math 0.00 — — — 0
wiki_geography 43.47 3141 100% 3141 1
wiki_biology 74.13 1858 100% 1858 1
wiki_modern_life 73.96 2008 100% 2008 1
wiki_arts 76.26 1818 100% 1818 1
wiki_society 65.41 2116 100% 2116 1
wiki_linguistics 0.00 — — — 0
wiki_physical_science 35.23 3567 100% 3567 1
wiki_history 86.72 1559 100% 1559 1
early_modern_science 34.91 3007 100% 3007 1
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 255.54 542 100% 467 3
eu_parliament_debates 361.64 371 100% 319 3
openstax_science 76.42 1803 100% 1803 1
openstax_society 69.38 1983 100% 1983 1
wpa_life_histories 43.92 1978 100% 1978 1

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.