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 |
143.02 | 678 | 94% | 640 | 2 |
20th_books |
216.94 | 546 | 94% | 464 | 2 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
2177.42 | 76 | 100% | 44 | 2 |
wiki_biology |
197.59 | 1181 | 100% | 698 | 2 |
wiki_modern_life |
172.85 | 1554 | 94% | 835 | 2 |
wiki_arts |
113.43 | 1925 | 100% | 1155 | 2 |
wiki_society |
98.48 | 2264 | 94% | 1368 | 2 |
wiki_linguistics |
115.37 | 1861 | 100% | 998 | 2 |
wiki_physical_science |
253.11 | 796 | 94% | 568 | 2 |
wiki_history |
280.89 | 689 | 100% | 431 | 2 |
early_modern_science |
300.64 | 389 | 94% | 354 | 2 |
religious_translated |
126.12 | 789 | 94% | 836 downrated | 1 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
71.04 | 2302 | 100% | 1494 | 2 |
eu_parliament_debates |
17.52 | 3710 | 94% | 3933 downrated | 1 |
openstax_science |
30.15 | 3638 | 94% | 3856 downrated | 1 |
openstax_society |
151.49 | 1194 | 100% | 900 | 2 |
wpa_life_histories |
521.09 | 306 | 94% | 217 | 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.