Base difficulty: Level 280 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 |
|---|---|---|
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 |
113.04 | 858 | 97% | 811 | 2 |
20th_books |
74.95 | 1241 | 97% | 1278 downrated | 1 |
wiki_math |
19.06 | 3697 | 97% | 3808 downrated | 1 |
wiki_geography |
0.00 | — | — | — | 0 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
57.95 | 2462 | 97% | 2536 downrated | 1 |
wiki_arts |
0.00 | — | — | — | 0 |
wiki_society |
0.00 | — | — | — | 0 |
wiki_linguistics |
20.35 | 4413 | 97% | 4545 downrated | 1 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
0.00 | — | — | — | 0 |
early_modern_science |
46.82 | 2297 | 97% | 2366 downrated | 1 |
religious_translated |
174.40 | 606 | 97% | 624 downrated | 1 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
25.35 | 3806 | 97% | 3920 downrated | 1 |
eu_parliament_debates |
35.38 | 2555 | 97% | 2632 downrated | 1 |
openstax_science |
0.00 | — | — | — | 0 |
openstax_society |
0.00 | — | — | — | 0 |
wpa_life_histories |
38.29 | 2865 | 97% | 2059 | 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.