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 74.39 1203 99% 1212 downrated 1
20th_books 41.78 1962 99% 1977 downrated 1
wiki_math 124.69 1034 99% 1042 downrated 1
wiki_geography 717.27 142 99% 143 downrated 1
wiki_biology 423.37 254 99% 256 downrated 1
wiki_modern_life 380.55 267 99% 269 downrated 1
wiki_arts 868.07 107 99% 108 downrated 1
wiki_society 544.37 169 99% 170 downrated 1
wiki_linguistics 686.49 170 99% 171 downrated 1
wiki_physical_science 0.00 — — — 0
wiki_history 833.69 112 99% 113 downrated 1
early_modern_science 414.26 252 99% 254 downrated 1
religious_translated 103.00 989 99% 996 downrated 1
cooking 0.00 — — — 0
legal_scotus 365.76 327 99% 329 downrated 1
eu_parliament_debates 270.50 456 99% 459 downrated 1
openstax_science 326.08 386 99% 389 downrated 1
openstax_society 378.34 320 99% 322 downrated 1
wpa_life_histories 85.10 1123 99% 1131 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.