Base difficulty: Level 22 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 |
|---|---|---|
cambridge_yle |
Flyers (3 of 3) | 1200 |
cefr |
A1 (1 of 6) | 800 |
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 |
142.15 | 1008 | 100% | 629 | 3 |
20th_books |
186.36 | 713 | 100% | 506 | 3 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
41.91 | 3261 | 100% | 3261 | 1 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
189.79 | 1630 | 100% | 768 | 3 |
wiki_arts |
123.23 | 1440 | 100% | 1111 | 2 |
wiki_society |
0.00 | — | — | — | 0 |
wiki_linguistics |
0.00 | — | — | — | 0 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
88.17 | 1527 | 100% | 1527 | 1 |
early_modern_science |
40.25 | 2683 | 100% | 2683 | 1 |
religious_translated |
44.33 | 2146 | 100% | 2146 | 1 |
cooking |
189.31 | 867 | 100% | 582 | 2 |
legal_scotus |
5.87 | 9141 | 100% | 9141 | 1 |
eu_parliament_debates |
33.78 | 3765 | 100% | 2081 | 2 |
openstax_science |
0.00 | — | — | — | 0 |
openstax_society |
25.63 | 4402 | 100% | 4402 | 1 |
wpa_life_histories |
234.38 | 688 | 100% | 429 | 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.