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 |
89.54 | 1050 | 100% | 1050 | 1 |
20th_books |
67.94 | 1392 | 100% | 1392 | 1 |
wiki_math |
33.49 | 2645 | 100% | 2645 | 1 |
wiki_geography |
123.91 | 1101 | 100% | 1101 | 1 |
wiki_biology |
86.95 | 1619 | 100% | 1619 | 1 |
wiki_modern_life |
63.98 | 2296 | 100% | 2296 | 1 |
wiki_arts |
78.63 | 1764 | 100% | 1764 | 1 |
wiki_society |
63.14 | 2206 | 100% | 2206 | 1 |
wiki_linguistics |
71.48 | 1787 | 100% | 1787 | 1 |
wiki_physical_science |
37.15 | 3437 | 100% | 3437 | 1 |
wiki_history |
111.71 | 1185 | 100% | 1185 | 1 |
early_modern_science |
77.08 | 1507 | 100% | 1507 | 1 |
religious_translated |
91.75 | 1123 | 100% | 1123 | 1 |
cooking |
37.19 | 2137 | 100% | 2137 | 1 |
legal_scotus |
29.95 | 3470 | 100% | 3470 | 1 |
eu_parliament_debates |
29.00 | 2994 | 100% | 2994 | 1 |
openstax_science |
27.85 | 4018 | 100% | 4018 | 1 |
openstax_society |
61.18 | 2233 | 100% | 2233 | 1 |
wpa_life_histories |
167.16 | 637 | 100% | 637 | 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.