The names Burma and Myanmar are basically two ways of saying the same thing. They communicate similar information about one country. They designate the Bamar, the majority ethnic group to which two-thirds of all Burmese belong.
Burma emerges as the group’s colloquial, informal name in the Burmese language. Myanmar contrastingly functions as the name’s more formal, literary configuration.
It gets used either alone or as part of the currently complete name, Republic of the Union of Myanmar. It is the more recent choice of the two names since its official usage just dates back to 1989. The name Burma still may be found used even though it is politically correct to think “M is for Myanmar.”