Base Difficulty

Base difficulty: Level 303 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: 3938 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
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 48.79 1842 100% 1842 1
20th_books 29.87 2789 100% 2789 1
wiki_math 65.83 1666 100% 1666 1
wiki_geography 0.00 — — — 0
wiki_biology 31.75 3866 100% 3866 1
wiki_modern_life 0.00 — — — 0
wiki_arts 0.00 — — — 0
wiki_society 29.18 4467 100% 4467 1
wiki_linguistics 56.43 2192 100% 2192 1
wiki_physical_science 32.63 3777 100% 3777 1
wiki_history 0.00 — — — 0
early_modern_science 33.41 3098 100% 3098 1
religious_translated 46.26 2082 100% 2082 1
cooking 0.00 — — — 0
legal_scotus 39.47 2856 100% 2856 1
eu_parliament_debates 28.47 3025 100% 3025 1
openstax_science 25.77 4225 100% 4225 1
openstax_society 0.00 — — — 0
wpa_life_histories 10.08 6454 100% 6454 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.