lord's day

English Thesaurus

1. first day of the week; observed as a day of rest and worship by most Christians (noun.time)

hypernym	:	day of rest, rest day,
definition	:	a day set aside for rest (noun.time)

part meronym	:	weekend,
definition	:	a time period usually extending from Friday night through Sunday; more loosely defined as any period of successive days including one and only one Sunday (noun.time)