Sunday

n. first day of the week; Sabbath day of many Christians

adj. of or pertaining to Sunday; taking place mainly on Sunday; used maily on Sunday or on holidays (e.g.: "These are my Sunday clothes")

n. family name; female first name

v. spend Sunday (e.g.: "We sundayed playing golf")

SUNDAY (Stir Us, Free Us) is a contemporary art gallery located in the Lower East Side of New York City, USA. The gallery was founded by Clayton Sean Horton in the summer of 2006 and opened its first exhibition on October 6, 2006. Since its inception SUNDAY has exhibited an intergenerational group of artists including Gayleen Aiken, Ed Blackburn, Ronnie Bass, Brian Bress, Peter Gallo, Joel Gibb, G.B. Jones, and Asuka Ohsawa — many of whom explore religious culture, regional vernacular, sexuality, and semiotics.
See more at Wikipedia.org...

Sunday is the day of the week between Saturday and Monday. In the Judaeo-Christian tradition it is the first day of the week. Since the second half of the 20th century it has often been counted as the seventh day of the week. In Slavic languages Sunday (undividable day - referencing seven) is both the first and seventh days of the week. It is first because Wednesday is literally the "middle" of the week, while it is seventh because Tuesday, Thursday and Friday are literally the "second", "fourth" and "fifth" days of the week. It is named after Sunne, German goddess of the sun, which is where the word "sun" also derives its name.
See more at Wikipedia.org...

Noun
1. first day of the week; observed as a day of rest and worship by most Christians
(synonym) Lord's Day, Dominicus, Sun
(hypernym) rest day, day of rest
(part-holonym) weekend

Verb
1. spend Sunday; "We sundayed in the country"
(hypernym) spend, pass
(derivation) Sunday, Lord's Day, Dominicus, Sun

n. Sunday, family name; female first name

(n.)
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.
  

(a.)
Belonging to the Christian Sabbath.