Base difficulty: Level 415 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 |
Basic (1 of 2) | 600 |
cambridge_yle |
Movers (2 of 3) | 750 |
cefr |
A2 (2 of 6) | 2100 |
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 |
17.29 | 1026 | 14% | 5262 downrated | 2 |
20th_books |
17.25 | 1255 | 14% | 5094 downrated | 3 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
38.29 | 457 | 14% | 3199 downrated | 1 |
wiki_biology |
77.16 | 458 | 14% | 1682 downrated | 3 |
wiki_modern_life |
49.67 | 723 | 14% | 2813 downrated | 3 |
wiki_arts |
7.08 | 2792 | 14% | 10000 capped | 1 |
wiki_society |
0.00 | — | — | — | 0 |
wiki_linguistics |
0.00 | — | — | — | 0 |
wiki_physical_science |
35.07 | 566 | 14% | 3962 downrated | 1 |
wiki_history |
0.00 | — | — | — | 0 |
early_modern_science |
32.94 | 566 | 14% | 3247 downrated | 2 |
religious_translated |
16.37 | 1256 | 14% | 5987 downrated | 2 |
cooking |
207.63 | 151 | 14% | 758 downrated | 2 |
legal_scotus |
1.13 | 7813 | 14% | 20000 capped | 1 |
eu_parliament_debates |
0.00 | — | — | — | 0 |
openstax_science |
13.00 | 1521 | 14% | 10647 downrated | 1 |
openstax_society |
2.89 | 5176 | 14% | 11000 capped | 1 |
wpa_life_histories |
25.69 | 821 | 14% | 3758 downrated | 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.