A kind of narrative poem, adapted for recitation or singing; especially, a sentimental or romantic poem in short stanzas.

“The poet composed a ballad praising the heroic exploits of the fallen commander.”

A slow romantic song.

“On Friday nights, the roller rink had a time-block called "Lovers' Lap" when they played nothing but ballads on the overhead speakers.”

To make mention of in ballads.

To compose or sing ballads.