Base difficulty: Level 180 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 |
|---|---|---|
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 |
1.13 | 9509 | 20% | 20000 capped | 1 |
20th_books |
1.26 | 8658 | 20% | 20000 capped | 1 |
wiki_math |
3.46 | 3986 | 20% | 8000 capped | 1 |
wiki_geography |
0.00 | — | — | — | 0 |
wiki_biology |
11.18 | 4243 | 20% | 9000 capped | 2 |
wiki_modern_life |
30.27 | 919 | 20% | 4595 downrated | 1 |
wiki_arts |
11.70 | 2374 | 20% | 10000 capped | 1 |
wiki_society |
7.50 | 3662 | 20% | 11000 capped | 1 |
wiki_linguistics |
6.02 | 3466 | 20% | 9000 capped | 1 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
0.00 | — | — | — | 0 |
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 |
12.05 | 2194 | 20% | 10970 downrated | 1 |
openstax_society |
5.04 | 4482 | 20% | 11000 capped | 1 |
wpa_life_histories |
0.00 | — | — | — | 0 |
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.