Base difficulty: Level 275 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
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Tier Signals
| Source | Tier | Rank used |
|---|---|---|
basic_english |
Extended (2 of 2) | 1600 |
cambridge_yle |
Flyers (3 of 3) | 1200 |
cefr |
A1 (1 of 6) | 800 |
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 |
28.48 | 766 | 20% | 3249 downrated | 2 |
20th_books |
17.63 | 1282 | 20% | 5104 downrated | 2 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
0.00 | — | — | — | 0 |
wiki_biology |
32.04 | 1537 | 20% | 4344 downrated | 2 |
wiki_modern_life |
9.66 | 3008 | 20% | 10000 capped | 1 |
wiki_arts |
6.08 | 4326 | 20% | 10000 capped | 1 |
wiki_society |
0.00 | — | — | — | 0 |
wiki_linguistics |
0.00 | — | — | — | 0 |
wiki_physical_science |
6.17 | 3930 | 20% | 8000 capped | 1 |
wiki_history |
0.00 | — | — | — | 0 |
early_modern_science |
46.09 | 843 | 20% | 2498 downrated | 2 |
religious_translated |
12.50 | 1630 | 20% | 8150 downrated | 1 |
cooking |
5.63 | 2528 | 20% | 5200 capped | 1 |
legal_scotus |
1.54 | 7944 | 20% | 20000 capped | 1 |
eu_parliament_debates |
2.44 | 5029 | 20% | 11000 capped | 1 |
openstax_science |
15.13 | 2682 | 20% | 8011 downrated | 2 |
openstax_society |
0.00 | — | — | — | 0 |
wpa_life_histories |
20.53 | 1191 | 20% | 4568 downrated | 2 |
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.