Base difficulty: Level 1399 edit
Level distribution for adverb (focus): 1399: 3
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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 |
1.61 | 7544 | 20% | 20000 capped | 1 |
20th_books |
3.87 | 3927 | 20% | 19635 downrated | 1 |
wiki_math |
9.44 | 2099 | 20% | 8000 capped | 1 |
wiki_geography |
46.83 | 538 | 20% | 2690 downrated | 1 |
wiki_biology |
33.45 | 814 | 20% | 4070 downrated | 1 |
wiki_modern_life |
25.05 | 1163 | 20% | 5815 downrated | 1 |
wiki_arts |
33.91 | 764 | 20% | 3820 downrated | 1 |
wiki_society |
33.23 | 797 | 20% | 3985 downrated | 1 |
wiki_linguistics |
46.23 | 583 | 20% | 2915 downrated | 1 |
wiki_physical_science |
24.64 | 1186 | 20% | 5930 downrated | 1 |
wiki_history |
35.03 | 736 | 20% | 3680 downrated | 1 |
early_modern_science |
13.66 | 1675 | 20% | 8375 downrated | 1 |
religious_translated |
0.00 | — | — | — | 0 |
cooking |
7.44 | 2136 | 20% | 5200 capped | 1 |
legal_scotus |
9.10 | 2534 | 20% | 12670 downrated | 1 |
eu_parliament_debates |
11.04 | 1917 | 20% | 9585 downrated | 1 |
openstax_science |
13.62 | 1968 | 20% | 9840 downrated | 1 |
openstax_society |
38.66 | 730 | 20% | 3650 downrated | 1 |
wpa_life_histories |
2.70 | 4866 | 20% | 20000 capped | 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.