Base difficulty: Level 4 edit
Level distribution for numeral (cardinal): 4: 31 490: 72
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Tier Signals
| Source | Tier | Rank used |
|---|---|---|
basic_english |
Extended (2 of 2) | 1600 |
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 |
109.31 | 867 | 100% | 867 | 1 |
20th_books |
86.24 | 1111 | 100% | 1111 | 1 |
wiki_math |
57.74 | 1832 | 100% | 1832 | 1 |
wiki_geography |
153.33 | 870 | 100% | 870 | 1 |
wiki_biology |
164.89 | 828 | 100% | 828 | 1 |
wiki_modern_life |
126.67 | 1147 | 100% | 1147 | 1 |
wiki_arts |
142.06 | 942 | 100% | 942 | 1 |
wiki_society |
81.35 | 1729 | 100% | 1729 | 1 |
wiki_linguistics |
95.12 | 1361 | 100% | 1361 | 1 |
wiki_physical_science |
88.86 | 1642 | 100% | 1642 | 1 |
wiki_history |
153.73 | 846 | 100% | 846 | 1 |
early_modern_science |
167.06 | 657 | 100% | 657 | 1 |
religious_translated |
105.11 | 991 | 100% | 991 | 1 |
cooking |
287.34 | 505 | 100% | 505 | 1 |
legal_scotus |
46.75 | 2476 | 100% | 2476 | 1 |
eu_parliament_debates |
45.15 | 2226 | 100% | 2226 | 1 |
openstax_science |
78.55 | 1749 | 100% | 1749 | 1 |
openstax_society |
88.05 | 1560 | 100% | 1560 | 1 |
wpa_life_histories |
255.67 | 433 | 100% | 433 | 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.