Base difficulty: Level 10 edit
Level distribution for noun (building_structure): 1: 10 10: 8 20: 7 24: 20 26: 8 110: 4 114: 26 115: 19 380: 1 405: 3 1000: 2 1010: 1 1040: 8 1050: 1 1120: 1 1209: 1 1218: 1 1221: 1 1225: 1
No difficulty overrides set. The base difficulty level will be used for all languages.
Add Difficulty Override
python -m storage.admin --calc-ranks to populate)
Tier Signals
| Source | Tier | Rank used |
|---|---|---|
basic_english |
Extended (2 of 2) | 1600 |
cambridge_yle |
Starters (1 of 3) | 325 |
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 |
551.07 | 214 | 100% | 214 | 1 |
20th_books |
658.32 | 186 | 100% | 186 | 1 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
783.39 | 127 | 100% | 127 | 1 |
wiki_biology |
139.77 | 989 | 100% | 989 | 1 |
wiki_modern_life |
329.90 | 321 | 100% | 321 | 1 |
wiki_arts |
265.33 | 414 | 100% | 414 | 1 |
wiki_society |
200.55 | 593 | 100% | 593 | 1 |
wiki_linguistics |
138.10 | 895 | 100% | 895 | 1 |
wiki_physical_science |
56.73 | 2414 | 100% | 2414 | 1 |
wiki_history |
375.38 | 257 | 100% | 257 | 1 |
early_modern_science |
117.00 | 960 | 100% | 960 | 1 |
religious_translated |
212.27 | 494 | 100% | 494 | 1 |
cooking |
283.25 | 516 | 100% | 516 | 1 |
legal_scotus |
185.08 | 697 | 100% | 697 | 1 |
eu_parliament_debates |
115.69 | 1042 | 100% | 1042 | 1 |
openstax_science |
77.57 | 1772 | 100% | 1772 | 1 |
openstax_society |
468.13 | 246 | 100% | 246 | 1 |
wpa_life_histories |
1513.61 | 97 | 100% | 97 | 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.