Base difficulty: Level 299 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 |
|---|---|---|
basic_english |
Extended (2 of 2) | 1600 |
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 |
2.20 | 8551 | 33% | 20000 capped | 1 |
20th_books |
2.52 | 7546 | 33% | 20000 capped | 1 |
wiki_math |
55.28 | 818 | 33% | 2454 downrated | 1 |
wiki_geography |
13.19 | 3434 | 33% | 9000 capped | 1 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
79.88 | 509 | 33% | 1527 downrated | 1 |
wiki_arts |
8.51 | 4973 | 33% | 10000 capped | 1 |
wiki_society |
32.94 | 1427 | 33% | 4281 downrated | 1 |
wiki_linguistics |
98.41 | 440 | 33% | 1320 downrated | 1 |
wiki_physical_science |
25.40 | 1886 | 33% | 5658 downrated | 1 |
wiki_history |
14.06 | 3197 | 33% | 9000 capped | 1 |
early_modern_science |
0.00 | — | — | — | 0 |
religious_translated |
0.00 | — | — | — | 0 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
16.79 | 2319 | 33% | 6957 downrated | 1 |
eu_parliament_debates |
14.65 | 2259 | 33% | 6777 downrated | 1 |
openstax_science |
65.76 | 716 | 33% | 2148 downrated | 1 |
openstax_society |
13.90 | 2994 | 33% | 8982 downrated | 1 |
wpa_life_histories |
4.27 | 5033 | 33% | 15099 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.