In set theory, an ordinal number, or ordinal, is one generalization of the concept of a natural number that is used to describe a way to arrange a (possibly infinite) collection of objects in order, one after another.
Ordinal numbers in English
The numbers which give us the exact position of an object are called ordinal numbers. Ordinal numbers tell the position of an object rather than their quantity.
They are the first, second, third, fourth, fifth, sixth, and so on.
Examples:
- He was the fourteenth person to win the award.
- He went to Cairo for the third time this year.
List of ordinal numbers from 1 to 49 with abbreviations
- 1st: First
- 2nd: Second
- 3rd: Third
- 4th: Fourth
- 5th: Fifth
- 6th: Sixth
- 7th: Seventh
- 8th: Eighth
- 9th: Ninth
- 10th: Tenth
- 11th: Eleventh
- 12th: Twelfth
- 13th: Twentieth
- 14th: Fourteenth
- 15th: Fifteenth
- 16th: Sixteenth
- 17th: Seventeenth
- 18th: Eighteenth
- 19th: Nineteenth
- 20th: Twentieth
- 21st: Twenty-first
- 22nd: Twenty-second
- 23rd: Twenty-third
- 24th: Twenty-fourth
- 25th: Twenty-fifth
- 26th: Twenty-sixth
- 27th: Twenty-seventh
- 28th: Twenty-eighth
- 29th: Twenty-ninth
- 30th: Thirtieth
- 31st: Thirty-firs
- 32nd: Thirty-second
- 33rd: Thirty-third
- 34th: Thirty-fourth
- 35th: Thirty-fifth
- 36th: Thirty-sixth
- 37th: Thirty-seventh
- 38th: Thirty-eighth
- 39th: Thirty-ninth
- 40th: Fortieth
- 41st: Forty-first
- 42nd: Forty-second
- 43rd: Forty-third
- 44th: Forty-fourth
- 45th: Forty-fifth
- 46th: Forty-sixth
- 47th: Forty-seventh
- 48th: Forty-eighth
- 49th: Forty-ninth
List of ordinal numbers from 50 to 99 with abbreviations
- 50th: Fiftieth
- 51st: Fifty-first
- 52nd: Fifty-second
- 53rd: Fifty-third
- 54th: Fifty-fourth
- 55th: Fifty-fifth
- 56th: Fifty-sixth
- 57th: Fifty-seventh
- 58th: Fifty-eighth
- 59th: Fifty-ninth
- 60th: Sixtieth
- 61st: Sixty-first
- 62nd: Sixty-second
- 63rd: Sixty-third
- 64th: Sixty-fourth
- 65th: Sixty-fifth
- 66th: Sixty-sixth
- 67th: Sixty-seventh
- 68th: Sixty-eighth
- 69th: Sixty-ninth
- 70th: Seventieth
- 71st: Seventy-first
- 72nd: Seventy-second
- 73rd: Seventy-third
- 74th: Seventy-fourth
- 75th: Seventy-fifth
- 76th: Seventy-sixth
- 77th: Seventy-seventh
- 78th: Seventy-eighth
- 79th: Seventy-ninth
- 80th: Eightieth
- 81st: Eighty-first
- 82nd: Eighty-second
- 83rd: Eighty-third
- 84th: Eighty-fourth
- 85th: Eighty-fifth
- 86th: Eighty-sixth
- 87th: Eighty-seventh
- 88th: Eighty-eighth
- 89th: Eighty-ninth
- 90th: Ninetieth
- 91st: Ninety-first
- 92nd: Ninety-second
- 93rd: Ninety-third
- 94th: 89th: Ninety-fourth
- 95th: Ninety-fifth
- 96th: Ninety-sixth
- 97th: Ninety-seventh
- 98th: Ninety-eighth
- 99th: Ninety-ninth
List of ordinal numbers from 100 to billion with abbreviations
- 100th: Hundredth
- 200th: Two hundredth
- 300th: Three hundredth
- 400th: Four hundredth
- 500th: Five hundredth
- 600th: Six hundredth
- 700th: Seven hundredth
- 800th: Eight hundredth
- 900th: Nine hundredth
- 1000th: thousandth
- 1500th: one thousand five hundredth
- 100,000th: hundred thousandth
- 100,500th: one hundred thousand five hundredth
- 1,000,000th: millionth
- 1,500,00th: one million five hundred thousandth
- 1,000,000,000th: billionth