The Hebrew word is used in various senses in the Old Testament, as,
+ One of the same tribe. (2 Samuel 19:13)
+ An ally. (Amos 1:9)
+ Any friend, (Job 5:15)
+ One of the same office. (1 Kings 9:13)
+ A fellow man. (Leviticus 19:17)
+ Metaphorically of any similarity, as in (Job 30:19) The word adelphos has a similar range of meanings in the New Testament.