allegiance/əˈli:dʒəns; ə`lidʒəns/ n[U](fml 文) ~ (to sb/sth) support of or loyalty to a government, ruler, cause, etc （对政府, 统治者, 事业等的）拥护, 忠诚 swear (an oath of) allegiance to the Queen 宣誓效忠女王.
牛津英汉双解词典