Definitionen
1.AdjectiveOf fundamental importance; crucial, pivotal."a cardinal rule"
2.AdjectiveOf or relating to the cardinal directions (north, south, east and west)."a cardinal mark"
3.AdjectiveDescribing a “natural” number used to indicate quantity (e.g., zero, one, two, three), as opposed to an ordinal number indicating relative position.
4.AdjectiveHaving a bright red color (from the color of a Catholic cardinal’s cassock).
5.AdjectiveBeing one of the signs Aries, Cancer, Libra and Capricorn, associated with initiation, creation, and force.
6.NounOne of the officials appointed by the pope in the Roman Catholic Church, ranking only below the pope, equal to the patriarchs, constituting the special college which elects the pope.
7.NounAny of various species of New-World passerine songbird in the genus Cardinalis, or in the family Cardinalidae more generally, or of similar appearance and once considered to be related to the former; so called because of their red plumage. (See Wikipedia article for taxonomical information.)
8.NounA deep red color, somewhat less vivid than scarlet, the traditional colour of a Catholic cardinal's cassock."cardinal: "
9.NounEllipsis of cardinal number, a number indicating quantity, or the size of a set (e.g., 0, 1, 2, 3). (See Cardinal_number.)
10.NounEllipsis of cardinal numeral, a word used to represent a cardinal number.
11.NounEllipsis of cardinal flower (Lobelia cardinalis), a flowering plant.
12.NounEllipsis of cardinal tetra (Paracheirodon axelrodi), a freshwater fish.
13.NounA woman's short cloak with a hood, originally made of scarlet cloth.
14.NounMulled red wine.