Base difficulty: Level 1 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
No difficulty overrides set. The base difficulty level will be used for all languages.
Add Difficulty Override
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 |
5.80 | 9320 | 100% | 9320 | 1 |
20th_books |
7.36 | 7674 | 100% | 7674 | 1 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
606.33 | 238 | 100% | 188 | 2 |
wiki_biology |
93.47 | 1490 | 100% | 1490 | 1 |
wiki_modern_life |
93.84 | 1568 | 100% | 1568 | 1 |
wiki_arts |
733.47 | 224 | 100% | 144 | 2 |
wiki_society |
48.88 | 2849 | 100% | 2849 | 1 |
wiki_linguistics |
21.36 | 4315 | 100% | 4315 | 1 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
58.26 | 2353 | 100% | 2353 | 1 |
early_modern_science |
27.32 | 3591 | 100% | 3591 | 1 |
religious_translated |
17.79 | 4372 | 100% | 4372 | 1 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
0.00 | — | — | — | 0 |
eu_parliament_debates |
0.00 | — | — | — | 0 |
openstax_science |
0.00 | — | — | — | 0 |
openstax_society |
18.59 | 5441 | 100% | 5441 | 1 |
wpa_life_histories |
13.50 | 6791 | 100% | 3967 | 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.