Base difficulty: Level 1030 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 1399: 14
No difficulty overrides set. The base difficulty level will be used for all languages.
Add Difficulty Override
Tier Signals
No lemma-tier assignment found yet.
Corpus Frequency
| Corpus | Freq (per M) | Best form | Share | Zipf rank | Forms |
|---|---|---|---|---|---|
19th_books |
6.22 | 7706 | 80% | 9632 downrated | 1 |
20th_books |
8.08 | 6248 | 80% | 7810 downrated | 1 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
0.00 | — | — | — | 0 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
24.97 | 4371 | 80% | 5464 downrated | 1 |
wiki_arts |
31.68 | 3414 | 80% | 4268 downrated | 1 |
wiki_society |
24.76 | 4290 | 80% | 5362 downrated | 1 |
wiki_linguistics |
0.00 | — | — | — | 0 |
wiki_physical_science |
39.58 | 2736 | 80% | 3420 downrated | 1 |
wiki_history |
0.00 | — | — | — | 0 |
early_modern_science |
0.00 | — | — | — | 0 |
religious_translated |
0.00 | — | — | — | 0 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
8.74 | 6556 | 80% | 8195 downrated | 1 |
eu_parliament_debates |
0.00 | — | — | — | 0 |
openstax_science |
36.22 | 2792 | 80% | 3490 downrated | 1 |
openstax_society |
33.04 | 3030 | 80% | 3787 downrated | 1 |
wpa_life_histories |
9.70 | 5262 | 80% | 6578 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.