兴国 most often appears as the second half of a four-character slogan: X
兴国, meaning 'revitalize the country through X.' Common forms include
科教兴国 (kē jiào xīng guó, through science and education),
实业兴国 (shíyè xīng guó, through industry), and
教育兴国 (jiàoyù xīng guó, through education).