Base difficulty: Level 1060 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
No difficulty overrides set. The base difficulty level will be used for all languages.
Add Difficulty Override
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 |
3.60 | 9780 | 67% | 14670 downrated | 1 |
20th_books |
0.00 | — | — | — | 0 |
wiki_math |
15.40 | 3348 | 67% | 5022 downrated | 1 |
wiki_geography |
154.04 | 544 | 67% | 816 downrated | 1 |
wiki_biology |
70.48 | 1324 | 67% | 1986 downrated | 1 |
wiki_modern_life |
78.43 | 1242 | 67% | 1863 downrated | 1 |
wiki_arts |
68.50 | 1337 | 67% | 2006 downrated | 1 |
wiki_society |
173.20 | 439 | 67% | 659 downrated | 1 |
wiki_linguistics |
198.85 | 434 | 67% | 651 downrated | 1 |
wiki_physical_science |
25.60 | 3349 | 67% | 5024 downrated | 1 |
wiki_history |
99.78 | 872 | 67% | 1308 downrated | 1 |
early_modern_science |
0.00 | — | — | — | 0 |
religious_translated |
0.00 | — | — | — | 0 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
123.72 | 696 | 67% | 1044 downrated | 1 |
eu_parliament_debates |
79.96 | 1004 | 67% | 1506 downrated | 1 |
openstax_science |
16.90 | 4307 | 67% | 6460 downrated | 1 |
openstax_society |
177.47 | 497 | 67% | 746 downrated | 1 |
wpa_life_histories |
3.88 | 9654 | 67% | 14481 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.