What is meant by RA in Islam?

Understanding RA in Islam

In reference to the companions of the Prophet (ﷺ), the abbreviation RA stands for the Arabic phrase Radeyallāhu ′Anhu (رضي الله عنه), which translates to "May Allah be pleased with him." When it comes to female companions, the corresponding phrase is Radeyallāhu ′Anha (رضي الله عنها), meaning "May Allah be pleased with her."