Base difficulty: Level 329 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 |
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 |
107.98 | 2354 | 100% | 771 | 4 |
20th_books |
131.45 | 1843 | 100% | 639 | 4 |
wiki_math |
122.08 | 1666 | 100% | 879 | 2 |
wiki_geography |
135.14 | 2751 | 100% | 1011 | 3 |
wiki_biology |
268.24 | 933 | 100% | 513 | 3 |
wiki_modern_life |
0.00 | — | — | — | 0 |
wiki_arts |
27.82 | 4636 | 100% | 4636 | 1 |
wiki_society |
98.30 | 2592 | 100% | 1412 | 2 |
wiki_linguistics |
228.50 | 1444 | 100% | 557 | 3 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
54.07 | 2538 | 100% | 2538 | 1 |
early_modern_science |
221.63 | 1487 | 100% | 505 | 4 |
religious_translated |
255.64 | 1056 | 100% | 388 | 4 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
57.86 | 4836 | 100% | 1392 | 4 |
eu_parliament_debates |
65.19 | 2813 | 100% | 1197 | 3 |
openstax_science |
29.49 | 3834 | 100% | 3834 | 1 |
openstax_society |
58.65 | 3675 | 100% | 1975 | 2 |
wpa_life_histories |
153.51 | 1593 | 100% | 564 | 4 |
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.