To shy away from a daring task; to decline, refuse, or avoid something due to fear or uncertainty.
To follow, travel down (a particular way, course of action etc.).
To follow urgently, originally with intent to capture or harm; to chase.
To aim for, go after (a specified objective, situation etc.).
To participate in (an activity, business etc.); to practise, follow (a profession).
To act as a legal prosecutor.