Base difficulty: Level 214 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 |
75.82 | 1997 | 100% | 1023 | 4 |
20th_books |
56.37 | 1956 | 100% | 1354 | 3 |
wiki_math |
202.10 | 1260 | 100% | 508 | 4 |
wiki_geography |
0.00 | — | — | — | 0 |
wiki_biology |
87.68 | 2886 | 100% | 1519 | 2 |
wiki_modern_life |
0.00 | — | — | — | 0 |
wiki_arts |
38.98 | 3461 | 100% | 3461 | 1 |
wiki_society |
162.88 | 2507 | 100% | 830 | 4 |
wiki_linguistics |
108.56 | 2408 | 100% | 1012 | 3 |
wiki_physical_science |
99.40 | 2462 | 100% | 1367 | 2 |
wiki_history |
42.31 | 3183 | 100% | 3183 | 1 |
early_modern_science |
249.07 | 1451 | 100% | 445 | 5 |
religious_translated |
213.89 | 977 | 100% | 472 | 3 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
276.66 | 1131 | 100% | 448 | 4 |
eu_parliament_debates |
110.17 | 2429 | 100% | 772 | 4 |
openstax_science |
87.69 | 2176 | 100% | 1419 | 2 |
openstax_society |
107.48 | 2599 | 100% | 1136 | 3 |
wpa_life_histories |
37.87 | 3507 | 100% | 1859 | 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.