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
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Tier Signals
| Source | Tier | Rank used |
|---|---|---|
basic_english |
Basic (1 of 2) | 600 |
cefr |
B2 (4 of 6) | 6900 |
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 |
23.60 | 3459 | 100% | 3459 | 1 |
20th_books |
9.68 | 6442 | 100% | 6442 | 1 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
0.00 | — | — | — | 0 |
wiki_biology |
123.76 | 1817 | 100% | 1108 | 2 |
wiki_modern_life |
107.35 | 2629 | 100% | 1365 | 2 |
wiki_arts |
0.00 | — | — | — | 0 |
wiki_society |
109.47 | 1924 | 100% | 1274 | 2 |
wiki_linguistics |
0.00 | — | — | — | 0 |
wiki_physical_science |
384.04 | 695 | 100% | 374 | 2 |
wiki_history |
0.00 | — | — | — | 0 |
early_modern_science |
634.07 | 306 | 100% | 170 | 2 |
religious_translated |
154.66 | 854 | 100% | 660 | 2 |
cooking |
111.56 | 1454 | 100% | 835 | 2 |
legal_scotus |
108.88 | 1717 | 100% | 1113 | 2 |
eu_parliament_debates |
197.93 | 964 | 100% | 593 | 2 |
openstax_science |
411.03 | 653 | 100% | 343 | 2 |
openstax_society |
64.90 | 2122 | 100% | 2122 | 1 |
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.