Base difficulty: Level 135 edit
Level distribution for noun (natural_feature): 10: 2 11: 1 135: 32 219: 33 330: 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 |
Flyers (3 of 3) | 1200 |
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 |
373.53 | 302 | 100% | 279 | 2 |
20th_books |
304.05 | 369 | 100% | 332 | 2 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
150.90 | 1101 | 100% | 830 | 2 |
wiki_biology |
112.61 | 1232 | 100% | 1232 | 1 |
wiki_modern_life |
323.62 | 392 | 100% | 355 | 2 |
wiki_arts |
93.21 | 1430 | 100% | 1430 | 1 |
wiki_society |
192.35 | 734 | 100% | 643 | 2 |
wiki_linguistics |
30.32 | 3210 | 100% | 3210 | 1 |
wiki_physical_science |
217.84 | 869 | 100% | 649 | 2 |
wiki_history |
121.78 | 1018 | 100% | 1018 | 1 |
early_modern_science |
343.71 | 346 | 100% | 314 | 2 |
religious_translated |
756.93 | 173 | 100% | 163 | 2 |
cooking |
1253.12 | 129 | 100% | 129 | 1 |
legal_scotus |
28.52 | 3434 | 100% | 3434 | 1 |
eu_parliament_debates |
38.49 | 3263 | 100% | 1816 | 2 |
openstax_science |
53.93 | 2390 | 100% | 2390 | 1 |
openstax_society |
100.96 | 1378 | 100% | 1378 | 1 |
wpa_life_histories |
435.11 | 301 | 100% | 262 | 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.