In the English language, **ordinal numbers **are numbers that we use to *put things into order, show a sequence* or say the *date*.

English

English

It is my **second** car.

*Second* is an ordinal number used to show sequence.

**How to Write Ordinal Numbers**

**Rule 1:** To write ordinal numbers we just **add th** to a regular number.

Example

Explanation

four - four**th**

To create an ordinal number, we add *th* to the number *four*.

### Exceptions

**Rule 2:** There are several exceptions in the English language when it comes to writing ordinal numbers. Here are the ordinal numbers you need to learn by heart:

- one - first
- two - second
- three - third
- five - fifth
- eight - eighth
- nine - ninth
- twelve - twelfth

**Note: **In large numbers, we **change only** **the last numeral** to an ordinal number.

English

English

321

three hundred and twenty-*first*

## Numerals

**Rule 3:** To turn *ordinal numbers* into numerals, we **add the last two letters** of the written number to the numeral.

- fir
**st**- 1st - seco
**nd**- 2nd - thi
**rd**- 3rd - four
**th**- 4th

## Usage

**Rule 4: **We use *ordinal numbers* to **say the date**.

Example

Explanation

Today's the **fourth** of May.

Fourth is an ordinal number.

**Rule 5:** We use *ordinal numbers* to **make lists and enumerations** or to **put things in an order**.

Example

Explanation

She used to live on the **eleventh** floor.

*Eleventh* is an ordinal number used in enumeration.

**Rule 6:** In titles (e.g., kings and queens), ordinal numbers are written as Roman numerals. In Spoken English, we add the definite article before the ordinal number:

English

English

Queen Elizabeth II

Queen Elizabeth the Second

**Note:** In spoken English, we add the definite article **the **before the ordinal number.

## Ordinal Numbers: An Overview

Here is a brief overview of the English ordinal numbers, both numeral and spelled out.

Spelled Out | Numeral |
---|---|

first | 1st |

second | 2nd |

third | 3rd |

fourth | 4th |

fifth | 5th |

sixth | 6th |

seventh | 7th |

eighth | 8th |

ninth | 9th |

tenth | 10th |

eleventh | 11th |

twelfth | 12th |

thirteenth | 13th |

fourteenth | 14th |

fifteenth | 15th |

sixteenth | 16th |

seventeenth | 17th |

eighteenth | 18th |

nineteenth | 19th |

twentieth | 20th |

twenty-first | 21st |

twenty-second | 22nd |

twenty-third | 23rd |

twenty-fourth | 24th |

thirtieth | 30th |

thirty-first | 31st |

fortieth | 40th |

fiftieth | 50th |

sixtieth | 60th |

seventieth | 70th |

eightieth | 80th |

ninetieth | 90th |

hundredth | 100th |

hundred and first | 101st |

hundred and fifty-second | 152nd |

two hundredth | 200th |

thousandth | 1,000th |

millionth | 1,000,000th |

billionth | 1,000,000,000th |

## Quiz

1/4

**Write the date as a word.** November 5.

0

correct answers.