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 |
88.61 | 1061 | 100% | 1061 | 1 |
20th_books |
67.94 | 1394 | 100% | 1394 | 1 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
40.92 | 3344 | 100% | 3344 | 1 |
wiki_biology |
29.59 | 4102 | 100% | 4102 | 1 |
wiki_modern_life |
43.37 | 3324 | 100% | 3324 | 1 |
wiki_arts |
84.24 | 1633 | 100% | 1633 | 1 |
wiki_society |
43.86 | 3166 | 100% | 3166 | 1 |
wiki_linguistics |
22.03 | 4282 | 100% | 4282 | 1 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
61.94 | 2206 | 100% | 2206 | 1 |
early_modern_science |
113.91 | 1016 | 100% | 1016 | 1 |
religious_translated |
118.07 | 891 | 100% | 891 | 1 |
cooking |
182.55 | 710 | 100% | 710 | 1 |
legal_scotus |
6.68 | 8640 | 100% | 8640 | 1 |
eu_parliament_debates |
16.68 | 4192 | 100% | 4192 | 1 |
openstax_science |
0.00 | — | — | — | 0 |
openstax_society |
60.76 | 2247 | 100% | 2247 | 1 |
wpa_life_histories |
167.83 | 633 | 100% | 633 | 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.