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 |
Basic (1 of 2) | 600 |
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 |
8.70 | 7139 | 100% | 7139 | 1 |
20th_books |
26.29 | 4232 | 100% | 2609 | 2 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
110.06 | 1849 | 100% | 1262 | 2 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
47.03 | 3067 | 100% | 3067 | 1 |
wiki_arts |
0.00 | — | — | — | 0 |
wiki_society |
130.65 | 1574 | 100% | 1071 | 2 |
wiki_linguistics |
34.17 | 3147 | 100% | 3147 | 1 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
156.44 | 1293 | 100% | 861 | 2 |
early_modern_science |
20.49 | 4440 | 100% | 4440 | 1 |
religious_translated |
0.00 | — | — | — | 0 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
192.21 | 1086 | 100% | 631 | 3 |
eu_parliament_debates |
1368.11 | 120 | 100% | 82 | 4 |
openstax_science |
0.00 | — | — | — | 0 |
openstax_society |
128.03 | 2600 | 100% | 984 | 3 |
wpa_life_histories |
31.80 | 2991 | 100% | 2202 | 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.