Communion: Generally, a term most closely related to the biblical idea of fellowship (from Greek *koinania). It can refer to either the relational fellowship persons may have with God or the fellowship persons have with one another, especially with those who are in Christ. The term is also used in reference to the *Lord’s Supper as an event marking the fellowship of the participants with Christ and with each other.
 Stanley J. Grenz;David Guretzki;Cherith Fee Nordling. Pocket Dictionary of Theological Terms (Kindle Locations 268-270). Kindle Edition.