Base difficulty: Level 321 edit
Level distribution for verb (change): 22: 4 28: 1 109: 1 140: 1 162: 2 194: 1 254: 1 255: 1 309: 2 311: 1 321: 16 410: 2 415: 2 475: 5 1040: 1 1090: 1 1399: 38
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Tier Signals
| Source | Tier | Rank used |
|---|---|---|
basic_english |
Extended (2 of 2) | 1600 |
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 |
1.10 | 5670 | 9% | 20000 capped | 1 |
20th_books |
1.87 | 3730 | 9% | 20000 capped | 1 |
wiki_math |
24.62 | 562 | 9% | 5005 downrated | 2 |
wiki_geography |
64.49 | 159 | 9% | 1638 downrated | 2 |
wiki_biology |
23.44 | 488 | 9% | 5368 downrated | 1 |
wiki_modern_life |
18.15 | 642 | 9% | 7062 downrated | 1 |
wiki_arts |
5.09 | 2480 | 9% | 10000 capped | 1 |
wiki_society |
12.39 | 995 | 9% | 10945 downrated | 1 |
wiki_linguistics |
4.61 | 2350 | 9% | 9000 capped | 1 |
wiki_physical_science |
33.41 | 357 | 9% | 3927 downrated | 1 |
wiki_history |
3.76 | 3259 | 9% | 9000 capped | 1 |
early_modern_science |
10.11 | 1046 | 9% | 10400 capped | 1 |
religious_translated |
0.00 | — | — | — | 0 |
cooking |
2.46 | 2552 | 9% | 5200 capped | 1 |
legal_scotus |
4.49 | 2350 | 9% | 20000 capped | 1 |
eu_parliament_debates |
5.10 | 1895 | 9% | 11000 capped | 1 |
openstax_science |
27.03 | 429 | 9% | 4719 downrated | 1 |
openstax_society |
37.85 | 282 | 9% | 3102 downrated | 1 |
wpa_life_histories |
9.37 | 1318 | 9% | 7953 downrated | 2 |
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.