Communion

is,

Fellowship; friendly communication or participation; a state of giving, receiving, and agreement.
Also, the partaking of wine and bread together, in
Christ's name, in rememberance of Him
;
also called, 'sacrament of the eucharist';
the 'celebration of the Lord's Supper'
or 'the Lord's Table'; or, the
' Blessed Sacrament.'

Be ye not unequally yoked together
with unbelievers:
for what fellowship hath
righteousness with unrighteousness?
and what communion
hath light with darkness?

2 Corinthians 6:14