'Captain' in the Bible

So the cohort and their commander and the officers of the Jews arrested Jesus and bound Him,

Now at Caesarea [Maritima] there was a man named Cornelius, a centurion of what was known as the Italian Regiment,

They said, “Cornelius, a centurion, an upright and God-fearing man well spoken of by all the Jewish people, was divinely instructed by a holy angel to send for you to come to his house and hear what you have to say.”

When we entered Rome, Paul was allowed to stay by himself [in rented quarters] with the soldier who was guarding him.