Base difficulty: Level 135 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 |
45.17 | 1919 | 100% | 1919 | 1 |
20th_books |
34.06 | 2366 | 100% | 2366 | 1 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
415.67 | 246 | 100% | 246 | 1 |
wiki_biology |
85.12 | 1632 | 100% | 1632 | 1 |
wiki_modern_life |
47.73 | 3004 | 100% | 3004 | 1 |
wiki_arts |
41.88 | 3043 | 100% | 3043 | 1 |
wiki_society |
39.73 | 3335 | 100% | 3335 | 1 |
wiki_linguistics |
30.34 | 3219 | 100% | 3219 | 1 |
wiki_physical_science |
106.46 | 1357 | 100% | 1357 | 1 |
wiki_history |
40.18 | 3080 | 100% | 3080 | 1 |
early_modern_science |
175.40 | 617 | 100% | 617 | 1 |
religious_translated |
187.12 | 571 | 100% | 571 | 1 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
0.00 | — | — | — | 0 |
eu_parliament_debates |
31.16 | 2758 | 100% | 2758 | 1 |
openstax_science |
23.66 | 4501 | 100% | 4501 | 1 |
openstax_society |
0.00 | — | — | — | 0 |
wpa_life_histories |
75.95 | 1243 | 100% | 1243 | 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.