Noun

• S: (n) reciprocation (the act of making or doing something in return)
• S: (n) reciprocation (alternating back-and-forth movement)
• S: (n) interchange, reciprocation, give-and-take (mutual interaction; the activity of reciprocating or exchanging (especially information))
• direct hyponym / full hyponym
• direct hypernym / inherited hypernym / sister term
• derivationally related form
• W: (v) interchange [Related to: interchange] (give to, and receive from, one another) "Would you change places with me?"; "We have been exchanging letters for a year"
• W: (v) reciprocate [Related to: reciprocation] (act, feel, or give mutually or in return) "We always invite the neighbors and they never reciprocate!"