Defining the term "Sacrifice"

The word "sacrifice" can hold several meanings to people, it's all in how the word is used or perceived by an individual, here are my perceptions on the term "sacrifice".
My first example of the word sacrifice can mean an offering of atonement to a deity or God. Such as the sacrificial lamb to a deity or the sacrificing of a virgin to a God, for protection of a village or even a prosperous harvest for the village.
Another example of the term sacrifice is the sacrifice fly or bunt in baseball. In baseball when a team has runners in scoring position the batter can choose to hit a sac-fly o…