Base difficulty: Level 221 edit
Level distribution for noun (concept_idea): 19: 2 20: 3 26: 1 27: 1 221: 29 270: 31 274: 37 275: 31 280: 29 380: 2 1000: 1 1030: 1 1060: 5 1070: 6 1110: 7 1120: 1
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 |
|---|---|---|
cambridge_yle |
Flyers (3 of 3) | 1200 |
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 |
24.85 | 3197 | 100% | 3197 | 1 |
20th_books |
50.64 | 1683 | 100% | 1683 | 1 |
wiki_math |
1089.95 | 105 | 100% | 105 | 1 |
wiki_geography |
67.14 | 1951 | 100% | 1951 | 1 |
wiki_biology |
78.94 | 1736 | 100% | 1736 | 1 |
wiki_modern_life |
174.59 | 764 | 100% | 764 | 1 |
wiki_arts |
65.65 | 2022 | 100% | 2022 | 1 |
wiki_society |
214.75 | 552 | 100% | 552 | 1 |
wiki_linguistics |
76.35 | 1555 | 100% | 1555 | 1 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
107.44 | 1186 | 100% | 1186 | 1 |
early_modern_science |
118.53 | 952 | 100% | — | 1 |
religious_translated |
0.00 | — | — | — | 0 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
199.03 | 648 | 100% | 648 | 1 |
eu_parliament_debates |
648.80 | 195 | 100% | 195 | 1 |
openstax_science |
210.31 | 671 | 100% | 671 | 1 |
openstax_society |
246.84 | 560 | 100% | 560 | 1 |
wpa_life_histories |
31.78 | 2559 | 100% | 2559 | 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.