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: 2261 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600
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 37.34 1209 50% 2143 downrated 1
20th_books 81.41 626 50% 1096 downrated 1
wiki_vital 59.24 1128 50% 2318 downrated 1
wiki_math 64.47 1011 50% 1820 downrated 1
wiki_geography 40.78 1624 50% 3282 downrated 1
wiki_biology 109.63 579 50% 1185 downrated 1
wiki_modern_life 120.02 498 50% 1052 downrated 1
early_modern_science 25.32 2114 50% 4017 downrated 1
religious_translated 0.00 0
cooking 105.37 638 50% 1133 downrated 1
legal_scotus 20.72 2657 50% 4584 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.