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: 2571 (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 65.87 836 50% 1393 downrated 2
20th_books 79.72 757 50% 1210 downrated 2
wiki_math 0.00 — — — 0
wiki_geography 0.00 — — — 0
wiki_biology 0.00 — — — 0
wiki_modern_life 21.36 3362 50% 6724 downrated 1
wiki_arts 33.37 2085 50% 4170 downrated 1
wiki_society 84.00 1152 50% 1650 downrated 2
wiki_linguistics 14.24 3573 50% 7146 downrated 1
wiki_physical_science 0.00 — — — 0
wiki_history 34.96 1977 50% 3954 downrated 1
early_modern_science 31.13 1831 50% 3662 downrated 1
religious_translated 344.74 258 50% 330 downrated 2
cooking 0.00 — — — 0
legal_scotus 30.16 2282 50% 3481 downrated 2
eu_parliament_debates 41.38 1388 50% 2776 downrated 1
openstax_science 0.00 — — — 0
openstax_society 80.81 1182 50% 1696 downrated 2
wpa_life_histories 16.69 2606 50% 5212 downrated 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.