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 |
|---|---|---|
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 |
3.59 | 7048 | 40% | 17620 downrated | 1 |
20th_books |
4.54 | 5765 | 40% | 14412 downrated | 1 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
175.58 | 452 | 40% | 723 downrated | 2 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
0.00 | — | — | — | 0 |
wiki_arts |
0.00 | — | — | — | 0 |
wiki_society |
17.16 | 3221 | 40% | 8052 downrated | 1 |
wiki_linguistics |
10.46 | 3797 | 40% | 9000 capped | 1 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
61.92 | 1419 | 40% | 2178 downrated | 2 |
early_modern_science |
9.11 | 4148 | 40% | 10370 downrated | 1 |
religious_translated |
0.00 | — | — | — | 0 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
38.44 | 1467 | 40% | 3126 downrated | 2 |
eu_parliament_debates |
14.40 | 2577 | 40% | 6442 downrated | 1 |
openstax_science |
0.00 | — | — | — | 0 |
openstax_society |
54.02 | 1742 | 40% | 2518 downrated | 2 |
wpa_life_histories |
34.87 | 1275 | 40% | 2541 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.