mutual aid

Etymology
. Popularised by the anarcho-communist philosopher, Peter Kropotkin.

Noun

 * 1)  The state of cooperation, as opposed to competition, as a factor in evolution and social development.
 * 2)  A voluntary reciprocal exchange of resources and services for mutual benefit.
 * 3)  An agreement among emergency responders to lend assistance across jurisdictional boundaries.
 * 4)  A social work practice model in which members of a group both provide and receive help.
 * 1)  A social work practice model in which members of a group both provide and receive help.

Translations

 * French:
 * Spanish: apoyo mutuo