Base Difficulty

Base difficulty: Level 9 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: 777 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
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 477.89 206 80% 241 downrated 2
20th_books 494.23 207 80% 245 downrated 2
wiki_math 0.00 — — — 0
wiki_geography 0.00 — — — 0
wiki_biology 32.75 3205 80% 4030 downrated 1
wiki_modern_life 43.01 2711 80% 3409 downrated 1
wiki_arts 283.96 326 80% 383 downrated 2
wiki_society 148.23 691 80% 869 downrated 1
wiki_linguistics 60.71 1674 80% 2105 downrated 1
wiki_physical_science 0.00 — — — 0
wiki_history 147.20 696 80% 875 downrated 1
early_modern_science 54.62 1667 80% 2096 downrated 1
religious_translated 639.56 172 80% 194 downrated 2
cooking 36.73 1865 80% 2345 downrated 1
legal_scotus 0.00 — — — 0
eu_parliament_debates 8.70 5352 80% 6730 downrated 1
openstax_science 0.00 — — — 0
openstax_society 60.76 1805 80% 2270 downrated 1
wpa_life_histories 183.56 513 80% 570 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.