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: 1612 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600

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 196.92 278 50% 493 downrated 1
20th_books 238.35 244 50% 427 downrated 1
wiki_vital 45.37 1534 50% 3152 downrated 1
wiki_math 15.27 2743 50% 4937 downrated 1
wiki_geography 52.93 1231 50% 2487 downrated 1
wiki_biology 69.39 1004 50% 2055 downrated 1
wiki_modern_life 75.20 922 50% 1948 downrated 1
early_modern_science 77.10 709 50% 1347 downrated 1
religious_translated 81.52 638 50% 1171 downrated 1
cooking 0.00 0
legal_scotus 28.00 2058 50% 3551 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.