Base difficulty: Level 1399 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 |
B2 (4 of 6) | 6900 |
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 |
4.76 | 2910 | 17% | 17635 downrated | 1 |
20th_books |
16.90 | 1107 | 17% | 5395 downrated | 2 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
33.99 | 1252 | 17% | 4090 downrated | 2 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
34.61 | 1344 | 17% | 4251 downrated | 2 |
wiki_arts |
8.91 | 4673 | 17% | 10000 capped | 2 |
wiki_society |
14.48 | 2686 | 17% | 9567 downrated | 2 |
wiki_linguistics |
0.00 | — | — | — | 0 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
6.95 | 3202 | 17% | 9000 capped | 1 |
early_modern_science |
0.00 | — | — | — | 0 |
religious_translated |
0.00 | — | — | — | 0 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
1.14 | 8409 | 17% | 20000 capped | 1 |
eu_parliament_debates |
2.87 | 4072 | 17% | 11000 capped | 1 |
openstax_science |
0.00 | — | — | — | 0 |
openstax_society |
3.27 | 5229 | 17% | 11000 capped | 1 |
wpa_life_histories |
12.61 | 1547 | 17% | 6923 downrated | 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.