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: 179 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
cambridge_yle Movers (2 of 3) 750
cefr A2 (2 of 6) 2100

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 274.01 410 100% 365 2
20th_books 367.46 314 100% 297 2
wiki_math 61.21 2379 100% 1400 2
wiki_geography 2202.79 73 100% 43 3
wiki_biology 379.21 404 100% 327 2
wiki_modern_life 913.51 135 100% 105 2
wiki_arts 540.82 383 100% 217 3
wiki_society 1373.77 96 100% 68 3
wiki_linguistics 615.88 362 100% 209 3
wiki_physical_science 234.44 803 100% 612 2
wiki_history 670.36 261 100% 165 3
early_modern_science 512.20 261 100% 211 2
religious_translated 276.41 462 100% 388 2
cooking 130.71 921 100% 921 1
legal_scotus 221.41 739 100% 549 3
eu_parliament_debates 2748.25 62 100% 42 3
openstax_science 97.25 1870 100% 1310 2
openstax_society 1784.09 107 100% 60 3
wpa_life_histories 736.76 167 100% 162 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.