comfort, support, or sympathy offered especially to the family and friends of somebody who has died.
Expressing sympathy to someone, especially after learning of a close death.
The responses of individuals to the actions of others.
A relation of mutual dependence or action or influence.
A reciprocal construction involves two noun phrases where each of the participants occupies both the role of agent and patient with respect to the other. see: Wikipedia:Reciprocal pronoun.
A reciprocal relationship.
The characteristic of being reciprocal, e.g. of a relationship between people.
The mutual exchange of rights, privileges or obligations between nations. see: Wikipedia:Reciprocity (international relations).