sympathysym·pa·thy /ˈsɪmpəθi/ noun1come out in sympathyHUMAN RESOURCES if workers come out in sympathy with workers who STRIKE (=refuse to work), they refuse to work as wellThe truck drivers are on strike, and other employees have downed tools (=stopped working) in sympathy.
2be in sympathy with journalismFINANCE if prices, rates, investments etc change in sympathy with other prices etc, they change at the same time or rateWheat futures prices rose in sympathy with corn and soybeans.