Base difficulty: Level 1220 edit
Level distribution for noun (collection_things): 350: 2 405: 1 460: 13 1000: 5 1010: 1 1030: 1 1050: 3 1060: 1 1080: 1 1205: 3 1211: 1 1214: 1 1220: 3 1223: 2
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 |
|---|---|---|
basic_english |
Extended (2 of 2) | 1600 |
cambridge_yle |
Movers (2 of 3) | 750 |
cefr |
A1 (1 of 6) | 800 |
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 |
0.47 | 1166 | 1% | 20000 capped | 1 |
20th_books |
0.43 | 1275 | 1% | 20000 capped | 1 |
wiki_math |
1.77 | 457 | 1% | 8000 capped | 1 |
wiki_geography |
0.00 | — | — | — | 0 |
wiki_biology |
1.59 | 456 | 1% | 9000 capped | 1 |
wiki_modern_life |
0.70 | 1227 | 1% | 10000 capped | 1 |
wiki_arts |
0.35 | 2250 | 1% | 10000 capped | 1 |
wiki_society |
0.00 | — | — | — | 0 |
wiki_linguistics |
0.43 | 1643 | 1% | 9000 capped | 1 |
wiki_physical_science |
0.88 | 980 | 1% | 8000 capped | 1 |
wiki_history |
0.21 | 3491 | 1% | 9000 capped | 1 |
early_modern_science |
0.46 | 1464 | 1% | 10400 capped | 1 |
religious_translated |
0.18 | 2912 | 1% | 10400 capped | 1 |
cooking |
0.17 | 2533 | 1% | 5200 capped | 1 |
legal_scotus |
0.03 | 8699 | 1% | 20000 capped | 1 |
eu_parliament_debates |
0.00 | — | — | — | 0 |
openstax_science |
0.99 | 867 | 1% | 11000 capped | 1 |
openstax_society |
0.00 | — | — | — | 0 |
wpa_life_histories |
0.55 | 1071 | 1% | 20000 capped | 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.