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 |
230.18 | 448 | 100% | 448 | 1 |
20th_books |
264.74 | 396 | 100% | 396 | 1 |
wiki_math |
51.18 | 1952 | 100% | 1952 | 1 |
wiki_geography |
0.00 | — | — | — | 0 |
wiki_biology |
174.17 | 762 | 100% | 762 | 1 |
wiki_modern_life |
151.85 | 901 | 100% | 901 | 1 |
wiki_arts |
578.97 | 171 | 100% | 171 | 1 |
wiki_society |
59.20 | 2293 | 100% | 2293 | 1 |
wiki_linguistics |
938.66 | 116 | 100% | 116 | 1 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
80.13 | 1623 | 100% | 1623 | 1 |
early_modern_science |
138.10 | 807 | 100% | 807 | 1 |
religious_translated |
157.14 | 669 | 100% | 669 | 1 |
cooking |
30.59 | 2416 | 100% | 2416 | 1 |
legal_scotus |
69.54 | 1755 | 100% | 1755 | 1 |
eu_parliament_debates |
88.82 | 1321 | 100% | 1321 | 1 |
openstax_science |
211.55 | 667 | 100% | 667 | 1 |
openstax_society |
82.00 | 1677 | 100% | 1677 | 1 |
wpa_life_histories |
78.65 | 1212 | 100% | 1212 | 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.