Base difficulty: Level 1060 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 |
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 |
0.00 | — | — | — | 0 |
20th_books |
0.00 | — | — | — | 0 |
wiki_math |
697.55 | 300 | 100% | 199 | 2 |
wiki_geography |
52.59 | 2625 | 100% | 2625 | 1 |
wiki_biology |
32.83 | 3777 | 100% | 3777 | 1 |
wiki_modern_life |
214.05 | 851 | 100% | 649 | 2 |
wiki_arts |
242.82 | 770 | 100% | 543 | 2 |
wiki_society |
754.09 | 180 | 100% | 134 | 2 |
wiki_linguistics |
274.08 | 861 | 100% | 479 | 2 |
wiki_physical_science |
281.38 | 678 | 100% | 509 | 2 |
wiki_history |
191.55 | 979 | 100% | 701 | 2 |
early_modern_science |
0.00 | — | — | — | 0 |
religious_translated |
0.00 | — | — | — | 0 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
73.47 | 2111 | 100% | 1490 | 2 |
eu_parliament_debates |
117.61 | 1242 | 100% | 921 | 2 |
openstax_science |
167.07 | 1297 | 100% | 815 | 2 |
openstax_society |
334.00 | 615 | 100% | 418 | 2 |
wpa_life_histories |
0.00 | — | — | — | 0 |
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.