Base Difficulty

Base difficulty: Level 22 edit

Level distribution for noun (time_period): 6: 4 22: 25 220: 15 405: 3 1030: 2 1050: 1 1070: 1 1120: 4 1200: 1 1202: 2

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 467.31 236 100% 236 1
20th_books 521.79 232 100% 232 1
wiki_math 0.00 — — — 0
wiki_geography 31.49 3618 100% 3618 1
wiki_biology 31.86 3835 100% 3835 1
wiki_modern_life 26.43 4895 100% 4895 1
wiki_arts 53.75 2447 100% 2447 1
wiki_society 40.62 3258 100% 3258 1
wiki_linguistics 0.00 — — — 0
wiki_physical_science 0.00 — — — 0
wiki_history 52.67 2435 100% 2435 1
early_modern_science 176.46 615 100% 615 1
religious_translated 142.56 745 100% 745 1
cooking 216.41 625 100% 625 1
legal_scotus 10.41 6388 100% 6388 1
eu_parliament_debates 17.27 3844 100% 3844 1
openstax_science 18.25 5333 100% 5333 1
openstax_society 39.97 3103 100% 3103 1
wpa_life_histories 394.41 298 100% 298 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.