A support network is a group of individuals who provide emotional, physical, and mental support to a person. Synonyms for support network include social network, safety net, backup system, circle of support, community of care, and lifeline. A social network represents a group of people a person interacts with regularly, while a safety net provides an added level of security in case of crisis. A backup system implies having multiple sources of support. Circle of support emphasizes the closeness of the support group. Community of care describes a group that provides care to its members, and a lifeline refers to a source of hope or help during times of need.