Base difficulty: Level 22 edit
Level distribution for noun (time_period): 6: 4 22: 25 220: 15 405: 3 1030: 2 1050: 1 1070: 1 1120: 4 1200: 1 1202: 2
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 |
34.37 | 2395 | 97% | 2467 downrated | 1 |
20th_books |
18.67 | 3761 | 97% | 3874 downrated | 1 |
wiki_math |
688.90 | 192 | 97% | 198 downrated | 1 |
wiki_geography |
1691.34 | 47 | 97% | 48 downrated | 1 |
wiki_biology |
591.30 | 169 | 97% | 174 downrated | 1 |
wiki_modern_life |
1176.86 | 67 | 97% | 69 downrated | 1 |
wiki_arts |
2025.84 | 45 | 97% | 46 downrated | 1 |
wiki_society |
1313.78 | 60 | 97% | 62 downrated | 1 |
wiki_linguistics |
1815.55 | 63 | 97% | 65 downrated | 1 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
1824.20 | 48 | 97% | 49 downrated | 1 |
early_modern_science |
215.64 | 478 | 97% | 492 downrated | 1 |
religious_translated |
43.40 | 2084 | 97% | 2147 downrated | 1 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
91.56 | 1360 | 97% | 1401 downrated | 1 |
eu_parliament_debates |
60.25 | 1759 | 97% | 1812 downrated | 1 |
openstax_science |
65.24 | 1986 | 97% | 2046 downrated | 1 |
openstax_society |
491.30 | 227 | 97% | 234 downrated | 1 |
wpa_life_histories |
20.64 | 3436 | 97% | 3539 downrated | 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.