the act of sharing; community; participation.-intercourse between two or more persons; esp., intimate association and intercourse implying sympathy and confidence; interchange of thoughts, purposes, etc.; agreement; fellowship; as, the communion of saints.-a body of christians having one common faith and discipline; as, the presbyterian communion.-the sacrament of the eucharist; the celebration of the lord's supper; the act of partaking of the sacrament; as, to go to communion; to partake of the communion.