Base difficulty: Level 1399 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 |
0.00 | — | — | — | 0 |
20th_books |
0.00 | — | — | — | 0 |
wiki_math |
3.92 | 3683 | 20% | 8000 capped | 1 |
wiki_geography |
339.76 | 943 | 100% | 408 | 4 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
415.57 | 630 | 20% | 328 | 4 |
wiki_arts |
25.86 | 4920 | 100% | 4920 | 1 |
wiki_society |
138.07 | 2488 | 100% | 997 | 4 |
wiki_linguistics |
4.16 | 4416 | 20% | 9000 capped | 1 |
wiki_physical_science |
40.13 | 3534 | 20% | 3096 | 2 |
wiki_history |
30.73 | 4201 | 100% | 4201 | 1 |
early_modern_science |
0.00 | — | — | — | 0 |
religious_translated |
0.00 | — | — | — | 0 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
151.10 | 1863 | 20% | 772 | 4 |
eu_parliament_debates |
89.23 | 1742 | 100% | 1102 | 3 |
openstax_science |
46.02 | 3018 | 100% | 2634 | 2 |
openstax_society |
117.87 | 2120 | 100% | 1052 | 4 |
wpa_life_histories |
96.91 | 1442 | 100% | 866 | 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.