[siks-tee-nahyn] 
| 1. | a cardinal number, 60 plus 9. |
| 2. | a symbol for this number, as 69 or LXIX. |
| 3. | a set of this many persons or things. |
| 4. | Slang: Vulgar. simultaneous oral-genital sexual activity between two partners. |
| 5. | amounting to 69 in number. |
tiˈnaɪn