broad·en 
/ˈbrɑ:dn̩/ verb
broad·ens; broad·ened; broad·en·ing /ˈbrɑ:dn̩/ verb 1 [+ obj] : to make (something) wider or more general
▪ They need to broaden their understanding of other cultures. ▪ The police have broadened the scope of the investigation. ▪ Travel can help to broaden your horizons/mind. [=increase the range of your knowledge, understanding, or experience] 2 [no obj] : to become wider or more general
▪ The road broadens [=widens] near the airport. ▪ Her smile broadened when I told her the good news. ▪ The investigation has broadened to include the mayor's staff. ▪ His interests broadened to include art and music, not just sports.
▪ They need to broaden their understanding of other cultures. ▪ The police have broadened the scope of the investigation. ▪ Travel can help to broaden your horizons/mind. [=increase the range of your knowledge, understanding, or experience]
▪ The road broadens [=widens] near the airport. ▪ Her smile broadened when I told her the good news. ▪ The investigation has broadened to include the mayor's staff. ▪ His interests broadened to include art and music, not just sports.
