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 |
|---|---|---|
basic_english |
Extended (2 of 2) | 1600 |
cambridge_yle |
Flyers (3 of 3) | 1200 |
cefr |
A2 (2 of 6) | 2100 |
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 |
0.00 | — | — | — | 0 |
20th_books |
0.00 | — | — | — | 0 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
23.26 | 3846 | 80% | 4808 downrated | 1 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
147.64 | 713 | 80% | 891 downrated | 1 |
wiki_arts |
0.00 | — | — | — | 0 |
wiki_society |
67.32 | 1619 | 80% | 2024 downrated | 1 |
wiki_linguistics |
20.66 | 3588 | 80% | 4485 downrated | 1 |
wiki_physical_science |
54.26 | 2062 | 80% | 2577 downrated | 1 |
wiki_history |
41.59 | 2469 | 80% | 3086 downrated | 1 |
early_modern_science |
0.00 | — | — | — | 0 |
religious_translated |
0.00 | — | — | — | 0 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
11.99 | 5148 | 80% | 6435 downrated | 1 |
eu_parliament_debates |
0.00 | — | — | — | 0 |
openstax_science |
0.00 | — | — | — | 0 |
openstax_society |
16.15 | 5152 | 80% | 6440 downrated | 1 |
wpa_life_histories |
4.94 | 8378 | 80% | 10472 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.