Base Difficulty

Base difficulty: Level 1399 edit

Level distribution for noun (emotion_feeling): 9: 7 13: 4 100: 10 303: 16 390: 1 450: 1 1030: 1 1060: 1 1070: 1 1120: 1 1399: 11

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: 5073 (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 1.87 6011 17% 20000 capped 1
20th_books 3.12 4034 17% 20000 capped 1
wiki_math 16.70 1512 17% 6188 downrated 2
wiki_geography 12.18 1936 17% 9000 capped 1
wiki_biology 37.90 736 17% 3570 downrated 2
wiki_modern_life 22.16 1081 17% 6486 downrated 1
wiki_arts 21.49 1052 17% 6312 downrated 1
wiki_society 44.64 620 17% 2895 downrated 2
wiki_linguistics 13.17 2202 17% 8628 downrated 2
wiki_physical_science 31.69 953 17% 4476 downrated 2
wiki_history 24.16 904 17% 5424 downrated 1
early_modern_science 0.00 — — — 0
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 31.33 785 17% 4005 downrated 2
eu_parliament_debates 37.94 601 17% 3038 downrated 2
openstax_science 124.32 179 17% 886 downrated 2
openstax_society 53.76 533 17% 2520 downrated 2
wpa_life_histories 1.56 6326 17% 20000 capped 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.