Base difficulty: Level 370 edit
Level distribution for noun (shape): 4: 12 12: 2 370: 13 1080: 3 1120: 1 1399: 1
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Tier Signals
| Source | Tier | Rank used |
|---|---|---|
basic_english |
Basic (1 of 2) | 600 |
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 |
79.49 | 1303 | 97% | 1102 | 2 |
20th_books |
123.13 | 861 | 97% | 771 | 2 |
wiki_math |
434.94 | 563 | 97% | 314 | 2 |
wiki_geography |
83.30 | 1659 | 97% | 1709 downrated | 1 |
wiki_biology |
117.52 | 1831 | 97% | 1159 | 2 |
wiki_modern_life |
223.94 | 844 | 97% | 625 | 2 |
wiki_arts |
67.37 | 1979 | 97% | 2038 downrated | 1 |
wiki_society |
0.00 | — | — | — | 0 |
wiki_linguistics |
0.00 | — | — | — | 0 |
wiki_physical_science |
99.22 | 2028 | 97% | 1371 | 2 |
wiki_history |
0.00 | — | — | — | 0 |
early_modern_science |
175.01 | 1050 | 97% | 662 | 2 |
religious_translated |
22.34 | 3648 | 97% | 3757 downrated | 1 |
cooking |
386.09 | 654 | 97% | 338 | 2 |
legal_scotus |
7.27 | 8031 | 97% | 8272 downrated | 1 |
eu_parliament_debates |
0.00 | — | — | — | 0 |
openstax_science |
116.13 | 1611 | 97% | 1133 | 2 |
openstax_society |
19.65 | 5168 | 97% | 5323 downrated | 1 |
wpa_life_histories |
65.52 | 1629 | 97% | 1310 | 2 |
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.