Afield means being far from where you usually are, like far from home or a usual place. It is often used to talk about going outside or traveling some distance.
She went afield to find new flowers.
They traveled afield for their work today.
In hunting or fishing, afield means being out in nature, away from towns or homes. It is used to describe places where these activities happen.
The hunters went afield early in the morning.
Fishermen must go afield to find good spots.
Afield can mean going beyond the usual area of knowledge or work. It expresses being outside your normal limits or subjects.
His ideas went afield of the original topic.
She ventured afield of her usual studies.
In sports or military, afield means being out on the open area where action happens, away from where you started or from safety.
The players moved afield during the game.
Troops were sent afield for their mission.
In idioms, afield means going far from a normal or expected area, often used for travel, work, or thinking beyond common limits.
He traveled afield to learn new languages.
Writers often go afield for new ideas.
In old or poetic uses, afield can be a noun meaning a field or piece of land. This is very rare and not common today.
The sheep grazed in the afield all day.
They crossed the afield to reach the village.