Base difficulty: Level 1399 edit
Level distribution for noun (social_institution): 299: 40 315: 1 360: 1 405: 1 1020: 2 1030: 7 1040: 1 1060: 11 1070: 7 1120: 9 1399: 25
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Tier Signals
| Source | Tier | Rank used |
|---|---|---|
cefr |
B2 (4 of 6) | 6900 |
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 |
32.64 | 3997 | 100% | 2262 | 3 |
20th_books |
27.66 | 1136 | 10% | 2484 downrated | 4 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
12.62 | 1911 | 10% | 9000 capped | 2 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
3.51 | 3955 | 10% | 10000 capped | 1 |
wiki_arts |
2.95 | 4404 | 10% | 10000 capped | 1 |
wiki_society |
135.61 | 1378 | 10% | 1032 | 4 |
wiki_linguistics |
0.00 | — | — | — | 0 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
84.73 | 1724 | 100% | 1610 | 2 |
early_modern_science |
51.23 | 3404 | 100% | 1887 | 2 |
religious_translated |
63.85 | 2324 | 100% | 1396 | 3 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
8.80 | 4357 | 10% | 7167 downrated | 2 |
eu_parliament_debates |
0.00 | — | — | — | 0 |
openstax_science |
2.74 | 4035 | 10% | 11000 capped | 1 |
openstax_society |
28.21 | 568 | 10% | 4811 downrated | 2 |
wpa_life_histories |
11.26 | 948 | 10% | 8353 downrated | 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.