General:
* Life (most common)
Specific:
* The life (referring to a specific life)
* Living (referring to the act of living)
* Existence (referring to the state of being alive)
For example:
* La vie est belle. (Life is beautiful.)
* C'est la vie. (That's life.)
* La vie en rose. (Life in pink.)
So, the best translation depends on the specific sentence or phrase in which "la vie" is used.