Base Difficulty

Base difficulty: Level 27 edit

Level distribution for noun (building_structure): 1: 10 8: 15 15: 14 16: 10 23: 10 27: 6 31: 2 32: 23

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: 2854 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals

No lemma-tier assignment found yet.

Corpus Frequency
Corpus Freq (per M) Best form Share Zipf rank Forms
19th_books 53.04 1829 100% 1653 2
20th_books 83.12 1118 100% 1118 1
wiki_vital 48.23 4643 100% 2416 2
wiki_math 0.00 0
wiki_geography 112.66 1999 100% 1115 2
wiki_biology 0.00 0
wiki_modern_life 0.00 0
early_modern_science 99.74 1136 100% 1136 1
religious_translated 50.61 1882 100% 1882 1
cooking 0.00 0
legal_scotus 7.70 7410 100% 7410 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.