This is the 764th most frequent Latvian word.
dzīvību
"Life" or "existence."
In this sentence, 'dzīvību' is used in its accusative form referring to the direct object, which is 'life' in the sense of survival or existence.
Es cīnīšos par savu dzīvību.
I will fight for my life.
Here, 'dzīvību' expresses a metaphorical sense of 'life' as vitality or emotional sustenance, applied in an abstract way.
Ģimenes mīlestība dod viņam dzīvību.
Family love gives him life.
In this sentence, 'dzīvību' is used in the context of preserving biological life, emphasizing a literal sense of saving someone from death.