WordWeb Online

1. Serving as an essential component
   "a cardinal rule";
   - central, fundamental, key, primal
    
2. Being or denoting a numerical quantity but not order
   "cardinal numbers"

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
    
2. The number of elements in a mathematical set; denotes a quantity but not the order
   - cardinal number
    
3. A variable colour averaging a vivid red
   - carmine
    
4. Crested thick-billed North American finch having bright red plumage in the male
   - cardinal grosbeak, Richmondena Cardinalis, Cardinalis cardinalis, redbird

Derived forms: cardinals

See also: 0, 1, 10, 100, 1000, 101, 105, 11, 110, 115, 12, 120, 125, 13, 130, 135, 14, 140, 145, 15, 150, 155, 16, 160, 165, 17, 170, 175, 18, 180, 19, 190, 2, 20, 200, 21, 22, 23, 24, 25, 26, 27, 28, 29, 3, 30, 300, 31, 32, 33, 34, 35, 36, 37, 38, 39, 4, 40, 400, 41, 42, 43, 44, 45, 46, 47, 48, 49, 5, 50, 500, 51, 52, 53, 54, 55, 56, 57, 58, 59, 6, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 7, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 8, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 9, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, ane [UK, dialect], bajillion [informal], bazillion [N. Amer, informal], billion, c, cc, ccc, cd, ci, cl, clv, clx, clxv, clxx, clxxv, clxxx, cv, cx, cxl, cxlv, cxv, cxx, cxxv, cxxx, cxxxv, d, dozen, eight, eighteen, eighty, eighty-eight, eighty-five, eighty-four, eighty-nine, eighty-one, eighty-seven, eighty-six, eighty-three, eighty-two, eleven, fifteen, fifty, fifty-eight, fifty-five, fifty-four, fifty-nine, fifty-one, fifty-seven, fifty-six, fifty-three, fifty-two, five, five hundred, forty, forty-eight, forty-five, forty-four, forty-nine, forty-one, forty-seven, forty-six, forty-three, forty-two, four, four hundred, fourscore [archaic], fourteen, gazillion [informal], half dozen, half-dozen, hundred, hundred and one, hundred thousand, i, ii, iii, ilx, ilxx, ilxxx, important, iv, ix, ixc, ixl, k, l, li, lii, liii, lv, lvi, lvii, lviii, lx, lxi, lxii, lxiii, lxiv, lxv, lxvi, lxvii, lxviii, lxx, lxxi, lxxii, lxxiii, lxxiv, lxxv, lxxvi, lxxvii, lxxviii, lxxx, lxxxi, lxxxii, lxxxiii, lxxxiv, lxxxv, lxxxvi, lxxxvii, lxxxviii, m, million, nine, nineteen, ninety, ninety-eight, ninety-five, ninety-four, ninety-nine, ninety-one, ninety-seven, ninety-six, ninety-three, ninety-two, non-zero, of import, one, one hundred, one hundred eighty, one hundred fifteen, one hundred fifty, one hundred fifty-five, one hundred five, one hundred forty, one hundred forty-five, one hundred ninety, one hundred one, one hundred seventy, one hundred seventy-five, one hundred sixty, one hundred sixty-five, one hundred ten, one hundred thirty, one hundred thirty-five, one hundred twenty, one hundred twenty-five, one thousand, seven, seventeen, seventy, seventy-eight, seventy-five, seventy-four, seventy-nine, seventy-one, seventy-seven, seventy-six, seventy-three, seventy-two, six, sixteen, sixty, sixty-eight, sixty-five, sixty-four, sixty-nine, sixty-one, sixty-seven, sixty-six, sixty-three, sixty-two, squillion [informal], ten, ten thousand, thirteen, thirty, thirty-eight, thirty-five, thirty-four, thirty-nine, thirty-one, thirty-seven, thirty-six, thirty-three, thirty-two, thousand, three, three hundred, threescore [archaic], trillion, twelve, twenty, twenty-eight, twenty-five, twenty-four, twenty-nine, twenty-one, twenty-seven, twenty-six, twenty-three, twenty-two, two, two hundred, twoscore [archaic], v, vi, vii, viii, x, xc, xci, xcii, xciii, xciv, xcl, xcv, xcvi, xcvii, xcviii, xi, xii, xiii, xiv, xix, xl, xli, xlii, xliii, xliv, xlv, xlvi, xlvii, xlviii, xv, xvi, xvii, xviii, xx, xxi, xxii, xxiii, xxiv, xxix, xxv, xxvi, xxvii, xxviii, xxx, xxxi, xxxii, xxxiii, xxxiv, xxxv, xxxvi, xxxvii, xxxviii, zero, zillion [informal]

Type of: bishop, finch, number, red, redness

Antonym: ordinal

Part of: cardinalate, College of Cardinals, genus Richmondena, Richmondena, Sacred College, Sacred College of Cardinals

Encyclopedia: Cardinal, Martin