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Pronunciation key
Ordinal numerals
| 1 | first [fɜːst] |
| 2 | second [ˈsɛkn(ə)d] |
| 3 | third [θɜːd] |
| 4 | fourth [fɔːθ] |
| 5 | fifth [fɪf(t)θ] |
| 6 | sixth [sɪks(t)θ] |
| 7 | seventh [ˈsɛvnθ] |
| 8 | eighth [eɪtθ] |
| 9 | ninth [naɪnθ] |
| 10 | tenth [tɛnθ] |
| 11 | eleventh [ɪˈlɛvnθ] |
| 12 | twelfth [twɛl(f)θ] |
| 13 | thirteenth [ˌθɜːˈtiːnθ] |
| 14 | fourteenth [ˌfɔːˈtiːnθ] |
| 15 | fifteenth [ˌfɪfˈtiːnθ] |
| 16 | sixteenth [ˌsɪksˈtiːnθ] |
| 17 | seventeenth [ˌsɛvnˈtiːnθ] |
| 18 | eighteenth [ˌeɪˈtiːnθ] |
| 19 | nineteenth [ˌnaɪnˈtiːnθ] |
| 20 | twentieth [ˈtwɛntɪəθ] |
| 30 | thirtieth [ˈθɜːtɪəθ] |
| 40 | fortieth [ˈfɔːtɪəθ] |
| 50 | fiftieth [ˈfɪftɪəθ] |
| 60 | sixtieth [ˈsɪkstɪəθ] |
| 70 | seventieth [ˈsɛvntɪəθ] |
| 80 | eightieth [ˈeɪtɪəθ] |
| 90 | ninetieth [ˈnaɪntɪəθ] |
| 100 | hundredth [ˈhʌndrɪtθ] |
| 1,000 | thousandth [ˈθaʊzn(t)θ] |
| 1,000,000 | millionth [ˈmɪljənθ] |
| 1,000,000,000 | milliardth [ˈmiljɑːtθ], billionth1 [ˈbɪljənθ] |
1 The word billion can mean both 109 and 1012.
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