Base difficulty: Level 10 edit
Level distribution for noun (natural_feature): 10: 2 11: 1 135: 25 165: 1 219: 26 330: 1 1010: 1 1020: 7 1050: 9 1221: 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 |
|---|---|---|
cambridge_yle |
Movers (2 of 3) | 750 |
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 |
94.10 | 1374 | 100% | 926 | 2 |
20th_books |
59.12 | 1765 | 100% | 1337 | 2 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
0.00 | — | — | — | 0 |
wiki_biology |
265.52 | 1016 | 100% | 521 | 2 |
wiki_modern_life |
89.16 | 3130 | 100% | 1601 | 2 |
wiki_arts |
155.95 | 1464 | 100% | 848 | 2 |
wiki_society |
87.31 | 2558 | 100% | 1527 | 2 |
wiki_linguistics |
183.16 | 1002 | 100% | 659 | 2 |
wiki_physical_science |
157.16 | 1482 | 100% | 899 | 2 |
wiki_history |
187.39 | 1093 | 100% | 682 | 2 |
early_modern_science |
266.95 | 482 | 100% | 397 | 2 |
religious_translated |
25.83 | 3220 | 100% | 3220 | 1 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
8.60 | 7069 | 100% | 7069 | 1 |
eu_parliament_debates |
38.20 | 2438 | 100% | 2438 | 1 |
openstax_science |
21.58 | 4820 | 100% | 4820 | 1 |
openstax_society |
104.79 | 1728 | 100% | 1242 | 2 |
wpa_life_histories |
103.63 | 1472 | 100% | 881 | 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.