Base difficulty: Level 29 edit
Level distribution for verb (development): 25: 14 27: 1 29: 1
No difficulty overrides set. The base difficulty level will be used for all languages.
Add Difficulty Override
Tier Signals
| Source | Tier | Rank used |
|---|---|---|
basic_english |
Basic (1 of 2) | 600 |
Rank used = synthetic rank this tier contributes to the combined frequency rank (lower = more common).
Corpus Frequency
| Corpus | Freq (per M) | Best form | Share | Zipf rank | Forms |
|---|---|---|---|---|---|
19th_books |
82.56 | 854 | 50% | 1099 downrated | 4 |
20th_books |
160.57 | 536 | 50% | 649 downrated | 4 |
wiki_vital |
107.47 | 1746 | 50% | 1190 | 4 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
125.99 | 1430 | 50% | 1045 | 3 |
wiki_biology |
54.73 | 3366 | 100% | 2309 | 2 |
wiki_modern_life |
256.73 | 818 | 50% | 513 | 4 |
early_modern_science |
59.65 | 1953 | 50% | 1708 | 3 |
religious_translated |
35.05 | 3318 | 50% | 2464 | 2 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
38.62 | 3288 | 50% | 2578 | 3 |
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.