Holy Sacrament vs sacrament of the Eucharist

Holy Sacrament and sacrament of the Eucharist both are nouns.

Word	Noun	Adjective	Verb	Adverb
Holy Sacrament	Yes	No	No	No
sacrament of the Eucharist	Yes	No	No	No

As nouns, Holy Sacrament and sacrament of the Eucharist are synonyms defined as:

Holy Sacrament and sacrament of the Eucharist: a Christian sacrament commemorating the Last Supper by consecrating bread and wine

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

Holy Sacrament (noun)	sacrament of the Eucharist (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