behind, at the back
Centred upon; surrounding.
Forming a circle or closed curve containing (something).
At or to various places within.
Following the perimeter of a specified area and returning to the starting point.
Near; in the vicinity of.
Following a path which curves near an object, with the object on the inside of the curve.
Present in the vicinity.
Alive; existing.
Used with verbs to indicate repeated or continuous action, or in numerous locations or with numerous people.
So as to partially or completely rotate; so as to face in the opposite direction.
From place to place.
From one state or condition to an opposite or very different one; with a metaphorical change in direction; bringing about awareness or agreement.
Nearly; approximately; about.
So as to surround or be near.
So as to form a circle or trace a circular path, or approximation thereof.
Used with certain verbs to suggest unproductive activity.