Synonyms: circle around, circle round, revolve around
Definition: move around in a circular motion
Usage: The Earth revolves around the Sun
Synonyms: revolve about, revolve around, concentrate on, focus on, center, center on
Definition: center upon
Usage: Her entire attention centered on her children; Our day revolved around our work
Similar words: concern, bear on, come to, refer, relate, touch, touch on, have-to doe with, pertain
Definition: be relevant to
Usage: There were lots of questions referring to her talk; My remark pertained to your earlier comments