Base Difficulty

Base difficulty: Level 1399 edit

Level distribution for adjective (assessment): 1399: 7

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: 6467 (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 0.00 — — — 0
20th_books 0.00 — — — 0
wiki_math 54.46 371 14% 2597 downrated 1
wiki_geography 8.89 2258 14% 9000 capped 1
wiki_biology 12.07 1655 14% 9000 capped 1
wiki_modern_life 29.90 602 14% 4214 downrated 1
wiki_arts 21.09 895 14% 6265 downrated 1
wiki_society 27.83 646 14% 4522 downrated 1
wiki_linguistics 43.40 422 14% 2954 downrated 1
wiki_physical_science 22.95 904 14% 6328 downrated 1
wiki_history 10.85 1793 14% 9000 capped 1
early_modern_science 0.00 — — — 0
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 24.31 767 14% 5369 downrated 1
eu_parliament_debates 26.09 650 14% 4550 downrated 1
openstax_science 33.35 598 14% 4186 downrated 1
openstax_society 24.78 812 14% 5684 downrated 1
wpa_life_histories 0.00 — — — 0

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.