a person who accepts the leadership of another
"The new manager quickly earned the loyalty of her entire team, turning each employee into a devoted follower."
someone who travels behind or pursues another
"The curious dog trotted close behind its owner, acting as a loyal follower during their morning walk."
One who follows, comes after another.
"The new lead singer was nervous as he waited for his fellow band member to finish playing before stepping forward to take his turn at the microphone."