1 Samuel 11:11

11:11 The next day Saul placed the people in three groups. They went to the Ammonite camp during the morning watch and struck them down until the hottest part of the day. The survivors scattered; no two of them remained together.

1 Samuel 30:13

30:13 David said to him, “To whom do you belong, and where are you from?” The young man said, “I am an Egyptian, the servant of an Amalekite man. My master abandoned me when I was ill for three days.

tn Heb “Ammon.” By metonymy the name “Ammon” is used collectively for the soldiers in the Ammonite army.