Happening by chance, casual.
To try or risk.
To discover something by chance.
To rob, cheat or swindle someone.
probability; possibility.
The probability of something happening.
An opportunity or possibility.
Random occurrence; luck.
Invigorating or life-giving.
Very important.
Containing life; living.
Necessary to continued existence.
Necessary to the continuation of life; being the seat of life; being that on which life depends.
Capable of living; in a state to live; viable.
Relating to the recording of life events.
Relating to, or characteristic of life.