Base Difficulty

Base difficulty: Level 249 edit

Level distribution for noun (place_name): 26: 3 249: 14 405: 5 406: 1 1203: 3 1204: 3 1207: 1 1210: 1 1212: 1 1221: 4 1222: 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
cambridge_yle Flyers (3 of 3) 1200

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 53.78 1935 80% 1510 2
20th_books 67.95 1640 80% 1213 2
wiki_math 0.00 — — — 0
wiki_geography 1194.86 131 80% 86 2
wiki_biology 247.74 739 100% 540 2
wiki_modern_life 149.98 1125 100% 945 2
wiki_arts 163.69 1195 100% 810 2
wiki_society 174.72 912 100% 737 2
wiki_linguistics 289.46 584 100% 431 2
wiki_physical_science 0.00 — — — 0
wiki_history 368.44 452 100% 299 2
early_modern_science 121.68 1085 80% 902 2
religious_translated 165.49 641 80% 608 2
cooking 0.00 — — — 0
legal_scotus 16.53 5561 80% 3813 2
eu_parliament_debates 96.24 1336 100% 1098 2
openstax_science 23.23 3879 80% 4849 downrated 1
openstax_society 277.33 629 100% 504 2
wpa_life_histories 175.96 733 80% 569 2

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.