SUNDAY
Sunday, Billy Sunday, William Ashley Sunday
(noun) United States evangelist (1862-1935)
Sunday, Lord's Day, Dominicus, Sun
(noun) first day of the week; observed as a day of rest and worship by most Christians
Source: WordNet® 3.1
Sun"day, n. Etym: [AS. sunnandæg; sunne, gen. sunnan, the sun + dæg
day; akin to D. zondag, G. sonntag; -- so called because this day was
anciently dedicated to the sun, or to its worship. See Sun, and Day.]
Definition: The first day of the week, -- consecrated among Christians to
rest from secular employments, and to religious worship; the
Christian Sabbath; the Lord's Day. Advent Sunday, Low Sunday, Passion
Sunday, etc. See under Advent, Low, etc.
Syn.
– See Sabbath.
Sun"day, a.
Definition: Belonging to the Christian Sabbath. Sunday letter. See
Dominical letter, under Dominical.
– Sunday school. See under School.
Source: Webster’s Unabridged Dictionary 1913 Edition