Base difficulty: Level 415 edit
Level distribution for verb (existence): 3: 2 10: 1 23: 1 135: 1 170: 1 179: 1 214: 8 215: 1 220: 1 329: 1 415: 1 475: 1 1399: 6
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Tier Signals
| Source | Tier | Rank used |
|---|---|---|
cefr |
B1 (3 of 6) | 4200 |
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 |
12.02 | 1704 | 14% | 6984 downrated | 3 |
20th_books |
6.16 | 2627 | 14% | 12543 downrated | 2 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
7.02 | 2792 | 14% | 9000 capped | 1 |
wiki_biology |
5.05 | 3578 | 14% | 9000 capped | 1 |
wiki_modern_life |
5.37 | 3762 | 14% | 10000 capped | 1 |
wiki_arts |
23.27 | 1493 | 14% | 5849 downrated | 3 |
wiki_society |
7.98 | 2486 | 14% | 11000 capped | 1 |
wiki_linguistics |
5.14 | 3024 | 14% | 9000 capped | 1 |
wiki_physical_science |
5.41 | 3372 | 14% | 8000 capped | 1 |
wiki_history |
11.52 | 1684 | 14% | 9000 capped | 1 |
early_modern_science |
15.89 | 1630 | 14% | 6612 downrated | 3 |
religious_translated |
6.64 | 2072 | 14% | 10400 capped | 1 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
8.04 | 4157 | 14% | 11073 downrated | 3 |
eu_parliament_debates |
6.16 | 2898 | 14% | 11000 capped | 2 |
openstax_science |
4.04 | 3961 | 14% | 11000 capped | 1 |
openstax_society |
3.90 | 4175 | 14% | 11000 capped | 1 |
wpa_life_histories |
2.88 | 5139 | 14% | 20000 capped | 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.