Base Difficulty

Base difficulty: Level 219 edit

Level distribution for noun (natural_object): 135: 2 160: 1 170: 2 195: 1 219: 1 290: 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

No lemma-tier assignment found yet.

Corpus Frequency
Corpus Freq (per M) Best form Share Zipf rank Forms
19th_books 0.00 — — — 0
20th_books 0.00 — — — 0
wiki_math 0.00 — — — 0
wiki_geography 19.40 4393 80% 5491 downrated 1
wiki_biology 394.11 215 80% 269 downrated 1
wiki_modern_life 35.92 3180 80% 3975 downrated 1
wiki_arts 0.00 — — — 0
wiki_society 0.00 — — — 0
wiki_linguistics 0.00 — — — 0
wiki_physical_science 81.13 1429 80% 1786 downrated 1
wiki_history 0.00 — — — 0
early_modern_science 64.62 1411 80% 1764 downrated 1
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 0.00 — — — 0
eu_parliament_debates 9.22 4806 80% 6007 downrated 1
openstax_science 39.18 2600 80% 3250 downrated 1
openstax_society 26.73 3582 80% 4478 downrated 1
wpa_life_histories 0.00 — — — 0

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.