1. (verb) center upon

• center
• center on
• concentrate on
• focus on
• revolve around

1. (verb) center upon

• bear on
• come to
• concern
• have-to doe with
• pertain
• refer
• relate
• touch
• touch on

1. (verb) center upon

• center
• center of attention
• centre
• centre of attention
• centering
• direction
• focal point
• focus
• focusing
• focussing