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: 2121 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cambridge_yle Movers (2 of 3) 750
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 49.45 1821 100% 1821 1
20th_books 65.21 1445 100% 1445 1
wiki_math 0.00 — — — 0
wiki_geography 0.00 — — — 0
wiki_biology 0.00 — — — 0
wiki_modern_life 0.00 — — — 0
wiki_arts 0.00 — — — 0
wiki_society 0.00 — — — 0
wiki_linguistics 22.03 4243 100% 4243 1
wiki_physical_science 0.00 — — — 0
wiki_history 0.00 — — — 0
early_modern_science 84.67 1368 100% 1368 1
religious_translated 42.58 2218 100% 2218 1
cooking 130.71 919 100% 919 1
legal_scotus 45.13 2550 100% 2550 1
eu_parliament_debates 54.93 1925 100% 1925 1
openstax_science 42.81 2898 100% 2898 1
openstax_society 33.90 3546 100% 3546 1
wpa_life_histories 40.33 2224 100% 2224 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.