<p><strong>Noun</strong></p><ul><li>Marriage between people of different religions, tribes, castes, ethnicities, or racial groups, as between a white person and a Black person or between a Christian and a Muslim.</li><li>Marriage between people of different social classes.</li><li>Marriage within a specific social or cultural group, as required by custom or law; endogamy.</li><li>Marriage between people belonging to the same small group, especially if they are close blood relatives.</li></ul>