Base difficulty: Level 115 edit
Level distribution for noun (building_structure): 1: 9 10: 6 20: 7 24: 9 26: 7 110: 4 114: 24 115: 12 120: 1 278: 4 380: 1 405: 3 1000: 2 1010: 1 1040: 8 1050: 1 1078: 4 1120: 1 1209: 1 1218: 1 1221: 1 1225: 1 1399: 12
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Tier Signals
| Source | Tier | Rank used |
|---|---|---|
cefr |
B1 (3 of 6) | 4200 |
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 |
4.62 | 6865 | 50% | 13730 downrated | 1 |
20th_books |
4.94 | 6293 | 50% | 12586 downrated | 1 |
wiki_math |
237.33 | 290 | 50% | 580 downrated | 1 |
wiki_geography |
38.54 | 1827 | 50% | 3654 downrated | 1 |
wiki_biology |
53.94 | 1298 | 50% | 2596 downrated | 1 |
wiki_modern_life |
59.58 | 1225 | 50% | 2450 downrated | 1 |
wiki_arts |
63.93 | 1057 | 50% | 2114 downrated | 1 |
wiki_society |
123.35 | 476 | 50% | 952 downrated | 1 |
wiki_linguistics |
86.26 | 765 | 50% | 1530 downrated | 1 |
wiki_physical_science |
86.72 | 834 | 50% | 1668 downrated | 1 |
wiki_history |
69.22 | 964 | 50% | 1928 downrated | 1 |
early_modern_science |
26.20 | 2121 | 50% | 4242 downrated | 1 |
religious_translated |
11.71 | 3604 | 50% | 7208 downrated | 1 |
cooking |
14.09 | 2484 | 50% | 4968 downrated | 1 |
legal_scotus |
272.41 | 190 | 50% | 380 downrated | 1 |
eu_parliament_debates |
270.33 | 232 | 50% | 464 downrated | 1 |
openstax_science |
59.22 | 1192 | 50% | 2384 downrated | 1 |
openstax_society |
71.51 | 987 | 50% | 1974 downrated | 1 |
wpa_life_histories |
8.51 | 4379 | 50% | 8758 downrated | 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.