communication by the exchange of letters compatibility of observations
"there was no agreement between theory and measurement"
"the results of two tests were in correspondence" the relation of corresponding in degree or size or amount (mathematics) an attribute of a shape or relation
exact reflection of form on opposite sides of a dividing line or plane similarity by virtue of corresponding
Committees of Correspondence
People of all races and national backgrounds who are committed to the struggle for democracy and socialism. The CoC split from the Communist Party, USA after the fall of the Berlin Wall in favor of an orientation closer to democratic socialism. http://www.cofc.org/