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 1399: 14
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Tier Signals
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Corpus Frequency
| Corpus | Freq (per M) | Best form | Share | Zipf rank | Forms |
|---|---|---|---|---|---|
19th_books |
321.83 | 330 | 100% | 330 | 1 |
20th_books |
246.91 | 419 | 100% | 419 | 1 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
182.84 | 714 | 100% | 714 | 1 |
wiki_biology |
191.60 | 699 | 100% | 699 | 1 |
wiki_modern_life |
119.28 | 1226 | 100% | 1226 | 1 |
wiki_arts |
405.52 | 260 | 100% | 260 | 1 |
wiki_society |
445.41 | 231 | 100% | 231 | 1 |
wiki_linguistics |
66.73 | 1901 | 100% | 1901 | 1 |
wiki_physical_science |
134.68 | 1082 | 100% | 1082 | 1 |
wiki_history |
0.00 | — | — | — | 0 |
early_modern_science |
0.00 | — | — | — | 0 |
religious_translated |
841.96 | 151 | 100% | 151 | 1 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
510.87 | 215 | 100% | 215 | 1 |
eu_parliament_debates |
131.87 | 909 | 100% | 909 | 1 |
openstax_science |
159.07 | 896 | 100% | 896 | 1 |
openstax_society |
365.51 | 336 | 100% | 336 | 1 |
wpa_life_histories |
0.00 | — | — | — | 0 |
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.