Base Difficulty

Base difficulty: Level 13 edit

Level distribution for noun (place_name): 13: 13

Per-Language Difficulty Overrides

No difficulty overrides set. The base difficulty level will be used for all languages.

Add Difficulty Override
-1 to exclude, 1-36 for level
Frequency and Tier Signals
Combined Frequency Rank: 194 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cambridge_yle Movers (2 of 3) 750

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 120.64 927 100% 807 2
20th_books 211.11 576 100% 513 2
wiki_vital 708.17 201 100% 138 2
wiki_math 28.28 2879 100% 2879 1
wiki_geography 6539.46 17 100% 14 2
wiki_biology 89.42 2413 100% 1437 2
wiki_modern_life 387.45 625 100% 318 2
early_modern_science 102.42 1561 100% 1091 2
religious_translated 589.95 255 100% 206 2
cooking 0.00 0
legal_scotus 153.02 939 100% 861 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.