GentileIsraelite; the word is derived from the Latin term gens (meaning "clan" or a "group of families") and is often employed in the plural. Christian translators of the Bible use this word to collectively designate the peoples and nations distinct from the Israelite people. Jewish people use this term to refer to non-Jews, but this word does not appear in English translations of the Hebrew Bible. Jews also use the word "goy" to mean the same thing, but it is sometimes considered derrogatory.
Also, members of the Church of Jesus Christ of Latter-day Saints, who regard themselves as regathered formerly-lost Israelites, have traditionally used the term "Gentile" for those who are not members of their church, but this word is never used for Jews, and almost never for former church members which are more commonly called "Jack Mormons." In younger (modern) generations of religious LDS, the word "Gentile" is antiquated, and the more neutral term "non-Mormon" is now more frequently used to refer to those who are not members of their church. See also Mormonism and Judaism.
Hebrew Christianity also believes that most people who adapt its beliefs are "Ephraimites", descendants of the "Lost Tribes of Israel."
The word goy is used in the old testament regarding Jacob and Esau. There are "shnei (two) goyim" in Rebecca's womb, or "two nations". Jacob, of course, is the father of the Israelites. Esau's descendants become a number of other nations, including Edom and other ancient enemies of the Israelites.
The word ethnos refers to a group of people, nation or tribe. It can in some instances refer to the Heathen. The word 'Gentile' should be used in context to understand the proper meaning in scripture.