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 |
Extended (2 of 2) | 1600 |
cambridge_yle |
Movers (2 of 3) | 750 |
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 |
108.00 | 881 | 100% | 881 | 1 |
20th_books |
85.82 | 1116 | 100% | 1116 | 1 |
wiki_math |
45.04 | 2163 | 100% | 2163 | 1 |
wiki_geography |
71.32 | 1971 | 100% | 1971 | 1 |
wiki_biology |
110.77 | 1263 | 100% | 1263 | 1 |
wiki_modern_life |
162.52 | 836 | 100% | 836 | 1 |
wiki_arts |
50.88 | 2718 | 100% | 2718 | 1 |
wiki_society |
31.83 | 4189 | 100% | 4189 | 1 |
wiki_linguistics |
52.13 | 2297 | 100% | 2297 | 1 |
wiki_physical_science |
106.93 | 1372 | 100% | 1372 | 1 |
wiki_history |
0.00 | — | — | — | 0 |
early_modern_science |
190.98 | 564 | 100% | 564 | 1 |
religious_translated |
23.03 | 3646 | 100% | 3646 | 1 |
cooking |
409.04 | 381 | 100% | 381 | 1 |
legal_scotus |
17.61 | 4934 | 100% | 4934 | 1 |
eu_parliament_debates |
21.14 | 3613 | 100% | 3613 | 1 |
openstax_science |
139.23 | 1019 | 100% | 1019 | 1 |
openstax_society |
63.24 | 2151 | 100% | 2151 | 1 |
wpa_life_histories |
112.04 | 1012 | 100% | 862 | 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.