Base difficulty: Level 179 edit
Level distribution for noun (material_substance): 19: 1 135: 1 179: 25 180: 26 184: 23 278: 2 314: 1 1000: 1 1020: 1 1030: 1 1040: 6 1050: 3 1078: 4 1090: 3 1100: 1 1399: 23
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Tier Signals
| Source | Tier | Rank used |
|---|---|---|
basic_english |
Extended (2 of 2) | 1600 |
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 |
5.80 | 4102 | 31% | 13332 downrated | 1 |
20th_books |
10.42 | 2469 | 31% | 8024 downrated | 1 |
wiki_math |
5.69 | 3786 | 31% | 8000 capped | 1 |
wiki_geography |
38.43 | 1090 | 31% | 3542 downrated | 1 |
wiki_biology |
25.87 | 1678 | 31% | 5454 downrated | 1 |
wiki_modern_life |
117.32 | 268 | 31% | 871 downrated | 1 |
wiki_arts |
0.00 | — | — | — | 0 |
wiki_society |
10.39 | 4010 | 31% | 11000 capped | 1 |
wiki_linguistics |
0.00 | — | — | — | 0 |
wiki_physical_science |
282.98 | 101 | 31% | 328 downrated | 1 |
wiki_history |
13.06 | 3170 | 31% | 9000 capped | 1 |
early_modern_science |
166.71 | 191 | 31% | 621 downrated | 1 |
religious_translated |
0.00 | — | — | — | 0 |
cooking |
76.97 | 549 | 31% | 1784 downrated | 1 |
legal_scotus |
13.51 | 2620 | 31% | 8515 downrated | 1 |
eu_parliament_debates |
32.26 | 1139 | 31% | 3702 downrated | 1 |
openstax_science |
202.56 | 150 | 31% | 487 downrated | 1 |
openstax_society |
13.61 | 2867 | 31% | 9318 downrated | 1 |
wpa_life_histories |
16.00 | 1820 | 31% | 5915 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.