Lord's Supper vs Holy Sacrament

Lord's Supper and Holy Sacrament both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lord's Supper	Yes	No	No	No
Holy Sacrament	Yes	No	No	No

As nouns, Lord's Supper and Holy Sacrament are synonyms defined as:

Lord's Supper and Holy Sacrament: a Christian sacrament commemorating the Last Supper by consecrating bread and wine

Other synonyms of Lord's Supper include Eucharist, Eucharistic liturgy, Holy Eucharist, Liturgy, sacrament of the Eucharist.

Lord's Supper (noun)	Holy Sacrament (noun)
a Christian sacrament commemorating the Last Supper by consecrating bread and wine	a Christian sacrament commemorating the Last Supper by consecrating bread and wine
the traditional Passover supper of Jesus with his disciples on the eve of his crucifixion