cor·re·spond·ence /ˌkôrəˈspänd(ə)n(t)s/
Noun
1. a letter, an exchange of letters
“Our correspondences have wings - paper birds that fly from my house to yours - flocks of ideas crisscrossing the country."
- Terry Tempest Williams (1955 - ) 2. similarity, equivalence, connection “In the motion of the very leaves of spring, in the blue air, there is then found a secret correspondence with our heart.” - Percy Bysshe Shelley (1792 - 1822)