Base difficulty: Level 15 edit
Level distribution for noun (building_structure): 1: 10 8: 15 15: 14 16: 10 23: 10 27: 6 31: 2 32: 23
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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 |
34.87 | 3371 | 100% | 2374 | 2 |
20th_books |
37.18 | 2971 | 100% | 2196 | 2 |
wiki_vital |
74.45 | 2888 | 100% | 1704 | 2 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
105.01 | 2072 | 100% | 1187 | 2 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
223.14 | 1094 | 100% | 610 | 2 |
early_modern_science |
0.00 | — | — | — | 0 |
religious_translated |
65.77 | 1976 | 100% | 1457 | 2 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
0.00 | — | — | — | 0 |
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.