Base difficulty: Level 10 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 |
|---|---|---|
basic_english |
Basic (1 of 2) | 600 |
cambridge_yle |
Movers (2 of 3) | 750 |
cefr |
A1 (1 of 6) | 800 |
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 |
77.52 | 1293 | 100% | 1132 | 2 |
20th_books |
114.20 | 924 | 100% | 828 | 2 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
572.62 | 393 | 100% | 214 | 2 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
424.12 | 572 | 100% | 294 | 2 |
wiki_arts |
78.88 | 3363 | 100% | 1713 | 2 |
wiki_society |
28.66 | 4543 | 100% | 4543 | 1 |
wiki_linguistics |
25.63 | 3853 | 100% | 3853 | 1 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
41.55 | 3244 | 100% | 3244 | 1 |
early_modern_science |
50.47 | 3770 | 100% | 1922 | 2 |
religious_translated |
21.27 | 3880 | 100% | 3880 | 1 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
37.83 | 4271 | 100% | 2360 | 2 |
eu_parliament_debates |
53.94 | 2464 | 100% | 1583 | 2 |
openstax_science |
19.94 | 5116 | 100% | 5116 | 1 |
openstax_society |
67.73 | 2983 | 100% | 1780 | 2 |
wpa_life_histories |
112.79 | 1040 | 100% | 827 | 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.