| สี่สิบ | [sīsip] (num) EN: forty ; 40 FR: quarante ; 40 |
| ๔๐ (สี่สิบ) | [sīsip] (num) EN: 40 (forty) FR: 40 (quarante) |
| ๔๑ (สี่สิบเอ็ด) | [sīsip-et] (num) EN: 41 (forty-one) FR: 41 (quarante-et-un) |
| ๔๒ (สี่สิบสอง) | [sīsip-søng] (num) EN: 42 (forty-two) FR: 42 (quarante-deux) |
| ๔๓ (สี่สิบสาม) | [sīsip-sām] (num) EN: 43 (forty-three) FR: 43 (quarante-trois) |
| ๔๔ (สี่สิบสี่) | [sīsip-sī] (num) EN: 44 (forty-four) FR: 44 (quarante-quatre) |
| ๔๕ (สี่สิบห้า) | [sīsip-hā] (num) EN: 45 (forty-five) FR: 45 (quarante-cinq) |
| ๔๖ (สี่สิบหก) | [sīsip-hok] (num) EN: 46 (forty-six) FR: 46 (quarante-six) |
| ๔๗ (สี่สิบเจ็ด) | [sīsip-jet] (num) EN: 47 (forty-seven) FR: 47 (quarante-sept) |
| ๔๘ (สี่สิบแปด) | [sīsip-paēt] (num) EN: 48 (forty-eight) FR: 48 (quarante-huit) |
| ๔๙ (สี่สิบเก้า) | [sīsip-kao] (num) EN: 49 (forty-nine) FR: 49 (quarante-neuf) |
| ๔๐๐๐๐ (สี่หมื่น) | [sī meūn] (num) EN: 40, 000 (forty thousand) FR: 40.000 (quarante milles) |
