Base difficulty: Level 299 edit
Level distribution for noun (social_institution): 299: 42 360: 1 405: 1 1020: 2 1030: 7 1040: 1 1060: 11 1070: 7 1120: 6
No difficulty overrides set. The base difficulty level will be used for all languages.
Add Difficulty Override
python -m storage.admin --calc-ranks to populate)
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 |
3.67 | 7722 | 50% | 15444 downrated | 1 |
20th_books |
6.62 | 4926 | 50% | 9852 downrated | 1 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
76.75 | 830 | 50% | 1660 downrated | 1 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
31.73 | 2296 | 50% | 4592 downrated | 1 |
wiki_arts |
16.50 | 3728 | 50% | 7456 downrated | 1 |
wiki_society |
167.76 | 321 | 50% | 642 downrated | 1 |
wiki_linguistics |
39.30 | 1519 | 50% | 3038 downrated | 1 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
109.60 | 494 | 50% | 988 downrated | 1 |
early_modern_science |
0.00 | — | — | — | 0 |
religious_translated |
0.00 | — | — | — | 0 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
240.05 | 240 | 50% | 480 downrated | 1 |
eu_parliament_debates |
701.10 | 82 | 50% | 164 downrated | 1 |
openstax_science |
11.41 | 4638 | 50% | 9276 downrated | 1 |
openstax_society |
369.85 | 143 | 50% | 286 downrated | 1 |
wpa_life_histories |
12.00 | 3141 | 50% | 6282 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.