Base difficulty: Level 276 edit
Level distribution for noun (quantitative_concept): 20: 1 26: 1 162: 20 276: 22 380: 20 390: 1 456: 1 460: 1 1000: 1 1050: 2 1070: 2 1080: 5 1090: 1 1110: 1 1120: 1 1202: 2 1203: 1 1204: 2 1206: 1 1210: 2 1211: 1 1213: 7 1218: 1 1225: 2 1226: 1 1399: 21
No difficulty overrides set. The base difficulty level will be used for all languages.
Add Difficulty Override
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 |
36.52 | 2398 | 100% | 2398 | 1 |
20th_books |
29.65 | 2802 | 100% | 2802 | 1 |
wiki_math |
33.40 | 2636 | 100% | 2636 | 1 |
wiki_geography |
82.22 | 1721 | 100% | 1721 | 1 |
wiki_biology |
70.55 | 1936 | 100% | 1936 | 1 |
wiki_modern_life |
68.19 | 2178 | 100% | 2178 | 1 |
wiki_arts |
65.13 | 2134 | 100% | 2134 | 1 |
wiki_society |
110.08 | 1273 | 100% | 1273 | 1 |
wiki_linguistics |
171.38 | 773 | 100% | 773 | 1 |
wiki_physical_science |
102.19 | 1430 | 100% | 1430 | 1 |
wiki_history |
76.83 | 1770 | 100% | 1770 | 1 |
early_modern_science |
208.73 | 518 | 100% | 518 | 1 |
religious_translated |
25.14 | 3407 | 100% | 3407 | 1 |
cooking |
37.18 | 2129 | 100% | 2129 | 1 |
legal_scotus |
244.61 | 514 | 100% | 514 | 1 |
eu_parliament_debates |
159.80 | 742 | 100% | 742 | 1 |
openstax_science |
50.67 | 2536 | 100% | 2536 | 1 |
openstax_society |
89.21 | 1545 | 100% | 1545 | 1 |
wpa_life_histories |
27.45 | 2847 | 100% | 2847 | 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.