序数词的英语单词

以下是英语中常见的序数词（Ordinal Numbers）：

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 - thirteenth

14th - fourteenth

15th - fifteenth

16th - sixteenth

17th - seventeenth

18th - eighteenth

19th - nineteenth

20th - twentieth

21st - twenty-first

22nd - twenty-second

23rd - twenty-third

30th - thirtieth

40th - fortieth

50th - fiftieth

60th - sixtieth

70th - seventieth

80th - eightieth

90th - ninetieth

100th - hundredth

请注意，序数词通常以***数字+th的形式表示，但在1st、2nd和3rd等几个特殊的序数词中，有些单词的拼写会有所不同。