The term 'nerve center' is used to describe a PLACE or organization that is the FOCUS of activity, decision-making, and communication. The crossword solutions for this term are 'FOCUS, ' 'LOCUS, ' and 'HUB.' FOCUS refers to a center of attention or activity, while LOCUS is a Latin word meaning 'PLACE' or 'LOCATION.' Finally, HUB is a term used to describe a central point from which other things originate or radiate. All three words can be used to describe a nerve center, as they all refer to a PLACE or organization that is the center of activity and communication.