(noun, adjective)


1. serving as an essential component

- a cardinal rule

Similar word(s): important, central, fundamental, key, primal

2. being or denoting a numerical quantity but not order

- cardinal numbers

Similar word(s): zero, ane, one, two, three, four, five, six, seven, eight, nine, ten, eleven, dozen, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, twenty, thirty, forty, twoscore, fifty, liv, sixty, threescore, seventy, eighty, fourscore, ninety, hundred, thousand, million, billion, trillion, zillion

Sentences with cardinal as an adjective:

- a cardinal mark


1. (Roman Catholic Church) one of a group of more than 100 prominent bishops in the Sacred College who advise the Pope and elect new Popes

Definition categories: person, bishop

2. the number of elements in a mathematical set; denotes a quantity but not the order

Definition categories: quantity, number

3. a variable color averaging a vivid red

Similar word(s): carmine

Definition categories: attribute, red, redness

4. crested thick-billed North American finch having bright red plumage in the male

Similar word(s): redbird

Definition categories: animal, finch

Sentences with cardinal as a noun:

- cardinal colour: