'Slaughter' in the Bible

It happened after the death of Saul, when David was returned from the slaughter of the Amalekites, and David had stayed two days in Ziklag;

Behold, he is now hidden in some pit, or in some other place. It will happen, when some of them have fallen at the first, that whoever hears it will say, 'There is a slaughter among the people who follow Absalom!'

The people of Israel were struck there before the servants of David, and there was a great slaughter there that day of twenty thousand men.