Base difficulty: Level 250 edit
Level distribution for adverb (location): 18: 4 23: 22 250: 13 1070: 1 1120: 5 1205: 1 1221: 1 1399: 2
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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 |
40.74 | 2177 | 100% | 2177 | 1 |
20th_books |
43.54 | 1988 | 100% | 1988 | 1 |
wiki_math |
166.99 | 811 | 100% | 811 | 1 |
wiki_geography |
65.94 | 2130 | 100% | 2130 | 1 |
wiki_biology |
366.01 | 314 | 100% | 314 | 1 |
wiki_modern_life |
81.66 | 1809 | 100% | 1809 | 1 |
wiki_arts |
105.39 | 1299 | 100% | 1299 | 1 |
wiki_society |
114.12 | 1214 | 100% | 1214 | 1 |
wiki_linguistics |
242.92 | 552 | 100% | 552 | 1 |
wiki_physical_science |
101.94 | 1433 | 100% | 1433 | 1 |
wiki_history |
67.23 | 2055 | 100% | 2055 | 1 |
early_modern_science |
157.11 | 712 | 100% | 712 | 1 |
religious_translated |
0.00 | — | — | — | 0 |
cooking |
218.55 | 608 | 100% | 608 | 1 |
legal_scotus |
47.75 | 2431 | 100% | 2431 | 1 |
eu_parliament_debates |
139.41 | 852 | 100% | 852 | 1 |
openstax_science |
103.00 | 1334 | 100% | 1334 | 1 |
openstax_society |
78.88 | 1740 | 100% | 1740 | 1 |
wpa_life_histories |
24.94 | 3057 | 100% | 3057 | 1 |
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.