Base difficulty: Level 1399 edit
Level distribution for adjective (importance): 340: 1 360: 1 390: 1 420: 5 1030: 1 1120: 4 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 |
5.17 | 5422 | 40% | 13555 downrated | 1 |
20th_books |
7.57 | 3985 | 40% | 9962 downrated | 1 |
wiki_math |
79.23 | 685 | 40% | 1713 downrated | 1 |
wiki_geography |
211.92 | 199 | 40% | 497 downrated | 1 |
wiki_biology |
109.88 | 455 | 40% | 1138 downrated | 1 |
wiki_modern_life |
63.10 | 871 | 40% | 2177 downrated | 1 |
wiki_arts |
93.74 | 519 | 40% | 1298 downrated | 1 |
wiki_society |
115.64 | 392 | 40% | 980 downrated | 1 |
wiki_linguistics |
104.43 | 512 | 40% | 1280 downrated | 1 |
wiki_physical_science |
90.15 | 623 | 40% | 1558 downrated | 1 |
wiki_history |
95.36 | 490 | 40% | 1225 downrated | 1 |
early_modern_science |
46.15 | 996 | 40% | 2490 downrated | 1 |
religious_translated |
0.00 | — | — | — | 0 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
34.48 | 1499 | 40% | 3748 downrated | 1 |
eu_parliament_debates |
41.49 | 1146 | 40% | 2865 downrated | 1 |
openstax_science |
111.81 | 477 | 40% | 1192 downrated | 1 |
openstax_society |
103.91 | 509 | 40% | 1272 downrated | 1 |
wpa_life_histories |
4.48 | 5517 | 40% | 13792 downrated | 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.