Base Difficulty

Base difficulty: Level 26 edit

Level distribution for noun (geographic_place): 26: 5 249: 5 254: 17 350: 1 420: 1 1010: 1 1020: 7 1030: 1 1050: 1 1060: 1 1120: 2 1399: 18

Per-Language Difficulty Overrides

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

Add Difficulty Override
-1 to exclude, 1-1399 for level
Frequency and Tier Signals
Combined Frequency Rank: 190 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cambridge_yle Movers (2 of 3) 750
cefr A1 (1 of 6) 800

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 132.79 945 100% 671 3
20th_books 298.89 565 100% 335 3
wiki_math 24.25 3185 100% 3185 1
wiki_geography 7357.10 17 100% 12 4
wiki_biology 89.48 2436 100% 1472 2
wiki_modern_life 451.71 664 100% 296 3
wiki_arts 570.88 358 100% 210 3
wiki_society 433.99 477 100% 288 3
wiki_linguistics 275.16 912 100% 462 3
wiki_physical_science 69.53 3286 100% 1795 2
wiki_history 1098.53 133 100% 92 4
early_modern_science 102.14 1616 100% 1083 2
religious_translated 579.34 262 100% 198 2
cooking 27.04 2559 100% 2559 1
legal_scotus 319.57 940 100% 389 4
eu_parliament_debates 85.84 2150 100% 1149 2
openstax_science 54.86 3438 100% 2039 2
openstax_society 723.80 299 100% 170 4
wpa_life_histories 559.74 389 100% 195 3

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.