noun
follower
FAH-loh-er/ˈfɑːləʊər/
Someone who moves after another person and follows that person's course.
The follower steps in the man's fresh footprints, taking the same winding route.

Etymology
Following already included accompanying someone as a disciple and obeying a guide. A follower can therefore be someone who adopts another's leadership or example, as well as someone who physically goes behind that person.
In context
He is a loyal follower of Donald Trump. >> I am a Trump fan. Yeah, I do support Trump.
More examples
- He glances back to check whether his follower is still there.
- The first hiker crosses the creek, and her followers take the same route.
- She turns into a narrow alley to lose her follower.
Forms
follower · followers
follow verb — Move behind someone along the same course.
Similar words
- pursuer
- A pursuer actively tries to catch someone moving ahead.
- shadow
- A shadow follows someone closely, often without being noticed.