Base Difficulty

Base difficulty: Level 235 edit

Level distribution for noun (city): 235: 43 1020: 3

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: 801 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cambridge_yle Flyers (3 of 3) 1200

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 181.97 547 100% 547 1
20th_books 156.70 652 100% 652 1
wiki_math 33.49 2613 100% 2613 1
wiki_geography 188.00 677 100% 677 1
wiki_biology 77.21 1793 100% 1793 1
wiki_modern_life 234.66 519 100% 519 1
wiki_arts 493.90 203 100% 203 1
wiki_society 238.57 493 100% 493 1
wiki_linguistics 167.14 791 100% 791 1
wiki_physical_science 77.81 1850 100% 1850 1
wiki_history 526.48 178 100% 178 1
early_modern_science 156.05 715 100% 715 1
religious_translated 0.00 — — — 0
cooking 61.98 1543 100% 1543 1
legal_scotus 5.46 9407 100% 9407 1
eu_parliament_debates 31.98 2797 100% 2797 1
openstax_science 0.00 — — — 0
openstax_society 33.90 3538 100% 3538 1
wpa_life_histories 21.96 3579 100% 3579 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.