Base difficulty: Level 274 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 |
cambridge_yle |
Flyers (3 of 3) | 1200 |
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 |
87.35 | 870 | 80% | 1088 downrated | 1 |
20th_books |
98.61 | 805 | 80% | 1006 downrated | 1 |
wiki_math |
59.13 | 1547 | 80% | 1934 downrated | 1 |
wiki_geography |
126.34 | 845 | 80% | 1056 downrated | 1 |
wiki_biology |
144.32 | 752 | 80% | 940 downrated | 1 |
wiki_modern_life |
96.01 | 1214 | 80% | 1517 downrated | 1 |
wiki_arts |
114.70 | 927 | 80% | 1159 downrated | 1 |
wiki_society |
72.01 | 1571 | 80% | 1964 downrated | 1 |
wiki_linguistics |
165.96 | 639 | 80% | 799 downrated | 1 |
wiki_physical_science |
70.08 | 1667 | 80% | 2084 downrated | 1 |
wiki_history |
71.75 | 1500 | 80% | 1875 downrated | 1 |
early_modern_science |
204.42 | 424 | 80% | 530 downrated | 1 |
religious_translated |
67.98 | 1211 | 80% | 1514 downrated | 1 |
cooking |
72.12 | 1222 | 80% | 1527 downrated | 1 |
legal_scotus |
13.11 | 5141 | 80% | 6426 downrated | 1 |
eu_parliament_debates |
18.02 | 3474 | 80% | 4342 downrated | 1 |
openstax_science |
110.38 | 1032 | 80% | 1290 downrated | 1 |
openstax_society |
163.36 | 689 | 80% | 861 downrated | 1 |
wpa_life_histories |
71.88 | 1122 | 80% | 1402 downrated | 1 |
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.