Base difficulty: Level 25 edit
Level distribution for verb (development): 25: 14 27: 1 29: 1
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Tier Signals
No lemma-tier assignment found yet.
Corpus Frequency
| Corpus | Freq (per M) | Best form | Share | Zipf rank | Forms |
|---|---|---|---|---|---|
19th_books |
33.53 | 2958 | 100% | 2407 | 2 |
20th_books |
51.28 | 2713 | 100% | 1664 | 3 |
wiki_vital |
1001.59 | 139 | 100% | 97 | 4 |
wiki_math |
477.32 | 370 | 100% | 302 | 3 |
wiki_geography |
574.83 | 263 | 100% | 195 | 3 |
wiki_biology |
884.57 | 261 | 100% | 131 | 4 |
wiki_modern_life |
971.31 | 127 | 100% | 98 | 3 |
early_modern_science |
86.31 | 1311 | 100% | 1311 | 1 |
religious_translated |
0.00 | — | — | — | 0 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
155.10 | 1716 | 100% | 907 | 4 |
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.