'Discharging' in the Bible

and you make an offering by fire to the Lord from the herd or from the flock (whether a burnt offering or a sacrifice for discharging a vow or as a freewill offering or in your solemn feasts) to create a pleasing aroma to the Lord,

And when you prepare a young bull as a burnt offering or a sacrifice for discharging a vow or as a peace offering to the Lord,