Base Difficulty

Base difficulty: Level 9 edit

Level distribution for noun (emotion_feeling): 9: 11 13: 12 16: 4 100: 10 390: 1 450: 1 1030: 1 1060: 1 1070: 1 1120: 1

Per-Language Difficulty Overrides

No difficulty overrides set. The base difficulty level will be used for all languages.

Add Difficulty Override
-1 to exclude, 1-1299 for level
Frequency and Tier Signals
Combined Frequency Rank: — (run python -m storage.admin --calc-ranks to populate)
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 458.31 202 80% 254 downrated 1
20th_books 483.25 204 80% 257 downrated 1
wiki_math 0.00 — — — 0
wiki_geography 0.00 — — — 0
wiki_biology 33.40 3127 80% 3932 downrated 1
wiki_modern_life 43.41 2661 80% 3346 downrated 1
wiki_arts 274.57 296 80% 372 downrated 1
wiki_society 152.38 631 80% 793 downrated 1
wiki_linguistics 63.39 1500 80% 1886 downrated 1
wiki_physical_science 0.00 — — — 0
wiki_history 155.17 588 80% 739 downrated 1
early_modern_science 54.91 1608 80% 2022 downrated 1
religious_translated 587.53 171 80% 215 downrated 1
cooking 37.84 1814 80% 2281 downrated 1
legal_scotus 3.97 9371 80% 11784 downrated 1
eu_parliament_debates 8.73 4912 80% 6177 downrated 1
openstax_science 0.00 — — — 0
openstax_society 60.62 1808 80% 2274 downrated 1
wpa_life_histories 169.10 513 80% 645 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.