1The two companies have been rival businesses in the tech industry for years, constantly trying to outdo each other in innovation.
2She was a rival candidate in the election, but her policies were not as well-received as those of the incumbent.
3The new restaurant in town has become a rival to the established eateries, offering a unique dining experience that attracts a loyal customer base.
4The two athletes have been rival runners since college, pushing each other to new heights in their sport.
5The discovery of a rival theory in physics has sparked a heated debate among scientists, challenging the long-held assumptions of the dominant paradigm.