Base difficulty: Level 25 edit
Level distribution for verb (development): 25: 14 27: 1 29: 1
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Tier Signals
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Corpus Frequency
| Corpus | Freq (per M) | Best form | Share | Zipf rank | Forms |
|---|---|---|---|---|---|
19th_books |
17.23 | 5462 | 100% | 3909 | 2 |
20th_books |
11.54 | 5387 | 100% | 5387 | 1 |
wiki_vital |
37.31 | 3491 | 100% | 3491 | 1 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
28.04 | 3945 | 100% | 3945 | 1 |
wiki_biology |
339.09 | 347 | 100% | 347 | 1 |
wiki_modern_life |
25.67 | 5000 | 100% | 5000 | 1 |
early_modern_science |
48.33 | 2185 | 100% | 2185 | 1 |
religious_translated |
0.00 | — | — | — | 0 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
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.