Base difficulty: Level 270 edit
Level distribution for noun (concept_idea): 19: 2 26: 1 27: 1 221: 28 270: 30 274: 30 275: 28 280: 25 300: 1 360: 1 380: 2 1000: 1 1030: 1 1060: 5 1070: 6 1110: 4 1120: 4 1399: 66
No difficulty overrides set. The base difficulty level will be used for all languages.
Add Difficulty Override
Tier Signals
| Source | Tier | Rank used |
|---|---|---|
basic_english |
Basic (1 of 2) | 600 |
cambridge_yle |
Flyers (3 of 3) | 1200 |
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 |
134.71 | 589 | 80% | 736 downrated | 1 |
20th_books |
177.86 | 477 | 80% | 596 downrated | 1 |
wiki_math |
16.63 | 3525 | 80% | 4406 downrated | 1 |
wiki_geography |
45.23 | 2456 | 80% | 3070 downrated | 1 |
wiki_biology |
189.93 | 534 | 80% | 668 downrated | 1 |
wiki_modern_life |
191.16 | 511 | 80% | 639 downrated | 1 |
wiki_arts |
108.89 | 985 | 80% | 1231 downrated | 1 |
wiki_society |
57.58 | 1953 | 80% | 2441 downrated | 1 |
wiki_linguistics |
162.95 | 651 | 80% | 814 downrated | 1 |
wiki_physical_science |
120.94 | 1434 | 80% | 1158 | 2 |
wiki_history |
94.07 | 1114 | 80% | 1392 downrated | 1 |
early_modern_science |
71.38 | 1309 | 80% | 1636 downrated | 1 |
religious_translated |
19.51 | 3491 | 80% | 4364 downrated | 1 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
25.10 | 3347 | 80% | 4184 downrated | 1 |
eu_parliament_debates |
30.85 | 2470 | 80% | 3088 downrated | 1 |
openstax_science |
62.51 | 1760 | 80% | 2200 downrated | 1 |
openstax_society |
58.53 | 1893 | 80% | 2366 downrated | 1 |
wpa_life_histories |
244.15 | 366 | 80% | 458 downrated | 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.