Base difficulty: Level 405 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 |
16.56 | 206 | 3% | 7073 downrated | 1 |
20th_books |
16.95 | 213 | 3% | 7313 downrated | 1 |
wiki_math |
7.01 | 569 | 3% | 8000 capped | 1 |
wiki_geography |
10.38 | 305 | 3% | 9000 capped | 1 |
wiki_biology |
6.34 | 582 | 3% | 9000 capped | 1 |
wiki_modern_life |
8.54 | 378 | 3% | 10000 capped | 1 |
wiki_arts |
7.62 | 422 | 3% | 10000 capped | 1 |
wiki_society |
5.54 | 639 | 3% | 11000 capped | 1 |
wiki_linguistics |
6.31 | 586 | 3% | 9000 capped | 1 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
7.12 | 422 | 3% | 9000 capped | 1 |
early_modern_science |
16.19 | 188 | 3% | 6455 downrated | 1 |
religious_translated |
3.43 | 878 | 3% | 10400 capped | 1 |
cooking |
167.91 | 20 | 3% | 687 downrated | 1 |
legal_scotus |
1.58 | 2124 | 3% | 20000 capped | 1 |
eu_parliament_debates |
3.44 | 1023 | 3% | 11000 capped | 1 |
openstax_science |
8.94 | 419 | 3% | 11000 capped | 1 |
openstax_society |
5.91 | 695 | 3% | 11000 capped | 1 |
wpa_life_histories |
11.46 | 300 | 3% | 10300 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.