Base difficulty: Level 1399 edit
Level distribution for noun (quality_attribute): 370: 12 405: 3 450: 1 456: 1 1000: 2 1030: 1 1040: 2 1050: 1 1070: 4 1120: 2 1399: 50
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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 |
3.16 | 8121 | 44% | 18272 downrated | 1 |
20th_books |
3.65 | 7153 | 44% | 16094 downrated | 1 |
wiki_math |
14.33 | 2685 | 44% | 6041 downrated | 1 |
wiki_geography |
96.03 | 592 | 44% | 1332 downrated | 1 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
56.06 | 1151 | 44% | 2590 downrated | 1 |
wiki_arts |
282.93 | 156 | 44% | 351 downrated | 1 |
wiki_society |
21.65 | 2862 | 44% | 6440 downrated | 1 |
wiki_linguistics |
0.00 | — | — | — | 0 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
48.47 | 1219 | 44% | 2743 downrated | 1 |
early_modern_science |
0.00 | — | — | — | 0 |
religious_translated |
0.00 | — | — | — | 0 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
0.00 | — | — | — | 0 |
eu_parliament_debates |
0.00 | — | — | — | 0 |
openstax_science |
13.11 | 3832 | 44% | 8622 downrated | 1 |
openstax_society |
11.56 | 4323 | 44% | 9727 downrated | 1 |
wpa_life_histories |
3.36 | 7314 | 44% | 16456 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.