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 |
155.77 | 1379 | 100% | 679 | 4 |
20th_books |
91.88 | 2183 | 100% | 1032 | 4 |
wiki_vital |
214.43 | 1308 | 100% | 614 | 3 |
wiki_math |
148.17 | 1380 | 100% | 791 | 3 |
wiki_geography |
80.71 | 2259 | 100% | 1471 | 2 |
wiki_biology |
59.02 | 2303 | 100% | 2303 | 1 |
wiki_modern_life |
212.23 | 1396 | 100% | 627 | 3 |
early_modern_science |
187.97 | 1371 | 100% | 615 | 4 |
religious_translated |
84.48 | 2406 | 100% | 1154 | 3 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
184.67 | 1524 | 100% | 802 | 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.