/ rɪˈpʌblɪkən; NAmE / noun , adjective
■ noun
1.
a person who supports a form of government with a president and politicians elected by the people with no king or queen
—compare royalist
2.
Republican ( abbr. R , Rep. ) a member or supporter of the Republican Party
—compare Democrat
3.
Republican a person from Northern Ireland who believes that Northern Ireland should be part of the Republic of Ireland and not part of the United Kingdom
—compare loyalist
■ adjective
1.
connected with or like a republic ; supporting the principles of a republic :
a republican government / movement
2.
(also Republican ) ( abbr. R , Rep. ) connected with the Republican Party
3.
(also Republican ) connected with or supporting the Republicans in Northern Ireland
► re·pub·lic·an·ism (also Re·pub·lic·an·ism ) noun [ U ]:
a strong commitment to Republicanism