Base difficulty: Level 274 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 |
|---|---|---|
cefr |
A2 (2 of 6) | 2100 |
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 |
76.55 | 1190 | 100% | 1190 | 1 |
20th_books |
86.75 | 1069 | 100% | 1069 | 1 |
wiki_math |
60.49 | 1739 | 100% | 1739 | 1 |
wiki_geography |
73.72 | 1771 | 100% | 1771 | 1 |
wiki_biology |
29.69 | 4055 | 100% | 4055 | 1 |
wiki_modern_life |
58.49 | 2485 | 100% | 2485 | 1 |
wiki_arts |
72.80 | 1809 | 100% | 1809 | 1 |
wiki_society |
153.37 | 818 | 100% | 818 | 1 |
wiki_linguistics |
167.30 | 757 | 100% | 757 | 1 |
wiki_physical_science |
53.20 | 2542 | 100% | 2542 | 1 |
wiki_history |
126.91 | 970 | 100% | 970 | 1 |
early_modern_science |
45.27 | 2338 | 100% | 2338 | 1 |
religious_translated |
13.78 | 5109 | 100% | 5109 | 1 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
100.35 | 1283 | 100% | 1283 | 1 |
eu_parliament_debates |
852.56 | 134 | 100% | 134 | 1 |
openstax_science |
98.31 | 1398 | 100% | 1398 | 1 |
openstax_society |
257.97 | 518 | 100% | 518 | 1 |
wpa_life_histories |
38.18 | 2239 | 100% | 2239 | 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.