Base difficulty: Level 379 edit
Level distribution for adjective (chemical_physical): 379: 8 1040: 1 1050: 14 1120: 6 1399: 5
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Tier Signals
| Source | Tier | Rank used |
|---|---|---|
basic_english |
Extended (2 of 2) | 1600 |
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 |
45.26 | 1622 | 80% | 2028 downrated | 1 |
20th_books |
34.83 | 1994 | 80% | 2492 downrated | 1 |
wiki_math |
98.86 | 1080 | 80% | 1350 downrated | 1 |
wiki_geography |
0.00 | — | — | — | 0 |
wiki_biology |
52.24 | 2091 | 80% | 2614 downrated | 1 |
wiki_modern_life |
49.81 | 2360 | 80% | 2950 downrated | 1 |
wiki_arts |
61.32 | 1819 | 80% | 2274 downrated | 1 |
wiki_society |
54.61 | 2044 | 80% | 2555 downrated | 1 |
wiki_linguistics |
50.73 | 1988 | 80% | 2485 downrated | 1 |
wiki_physical_science |
183.54 | 614 | 80% | 768 downrated | 1 |
wiki_history |
42.02 | 2600 | 80% | 3250 downrated | 1 |
early_modern_science |
162.20 | 536 | 80% | 670 downrated | 1 |
religious_translated |
232.43 | 378 | 80% | 472 downrated | 1 |
cooking |
94.65 | 1006 | 80% | 1258 downrated | 1 |
legal_scotus |
18.13 | 4195 | 80% | 5244 downrated | 1 |
eu_parliament_debates |
0.00 | — | — | — | 0 |
openstax_science |
81.46 | 1349 | 80% | 1686 downrated | 1 |
openstax_society |
18.85 | 4687 | 80% | 5859 downrated | 1 |
wpa_life_histories |
27.43 | 2553 | 80% | 3191 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.