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 |
Basic (1 of 2) | 600 |
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 |
16.83 | 5676 | 100% | 3579 | 2 |
wiki_math |
33.49 | 2646 | 100% | 2646 | 1 |
wiki_geography |
257.68 | 1175 | 100% | 541 | 3 |
wiki_biology |
36.80 | 3491 | 100% | 3491 | 1 |
wiki_modern_life |
221.13 | 1565 | 100% | 664 | 3 |
wiki_arts |
74.66 | 2821 | 100% | 1799 | 2 |
wiki_society |
635.78 | 400 | 100% | 182 | 3 |
wiki_linguistics |
103.18 | 2523 | 100% | 1050 | 3 |
wiki_physical_science |
34.64 | 3613 | 100% | 3613 | 1 |
wiki_history |
122.73 | 1635 | 100% | 1101 | 2 |
early_modern_science |
43.66 | 2509 | 100% | 2509 | 1 |
religious_translated |
0.00 | — | — | — | 0 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
156.85 | 1600 | 100% | 720 | 4 |
eu_parliament_debates |
416.36 | 528 | 100% | 289 | 3 |
openstax_science |
473.37 | 667 | 100% | 298 | 3 |
openstax_society |
471.24 | 635 | 100% | 297 | 3 |
wpa_life_histories |
45.26 | 2595 | 100% | 1799 | 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.