1. A song that achieves commercial success and becomes popular with the public, typically gaining widespread radio play and chart recognition
That new pop song became a hit song on the radio last summer.
Aquela nova canção pop se tornou uma canção de sucesso no rádio no verão passado.
2. A musical composition that achieves significant acclaim or popularity in terms of sales, streams, or cultural impact
The band's latest release is shaping up to be a hit song.
O último lançamento da banda está se mostrando uma canção de sucesso.