Base Difficulty

Base difficulty: Level 405 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 0.56 1203 1% 20000 capped 1
20th_books 0.31 1962 1% 20000 capped 1
wiki_math 0.94 1034 1% 8000 capped 1
wiki_geography 5.38 142 1% 9000 capped 1
wiki_biology 3.18 254 1% 9000 capped 1
wiki_modern_life 2.85 267 1% 10000 capped 1
wiki_arts 6.51 107 1% 10000 capped 1
wiki_society 4.08 169 1% 11000 capped 1
wiki_linguistics 5.15 170 1% 9000 capped 1
wiki_physical_science 0.00 — — — 0
wiki_history 6.25 112 1% 9000 capped 1
early_modern_science 3.11 252 1% 10400 capped 1
religious_translated 0.77 989 1% 10400 capped 1
cooking 0.00 — — — 0
legal_scotus 2.74 327 1% 20000 capped 1
eu_parliament_debates 2.03 456 1% 11000 capped 1
openstax_science 2.45 386 1% 11000 capped 1
openstax_society 2.84 320 1% 11000 capped 1
wpa_life_histories 0.64 1123 1% 20000 capped 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.