Sun.

Noun

Sunday (plural Sundays)

1. The first day of the week in many religious traditions, and the seventh day of the week in systems using the ISO 8601 standard; the Christian Sabbath; it follows Saturday and precedes Monday.
   • Every day is like Sunday / Every day is silent and grey1988, Morrissey, “Everyday Is Like Sunday”, in Viva Hate

   Synonyms:

   First Day, Lord's Day, Sun//Sun.

2. (informal) A newspaper published on Sunday.
   • I gave him the switchboard with my love, went down to the Savoy for breakfast and read the Sundays.1974, John le Carré, Tinker Tailor Soldier Spy
3. (informal) A comic strip published in a Sunday newspaper.
   • It just wasn't his thing, although he did beautiful Sundays for however long he did them. So as soon as he could, he hired someone to do the Sundays. Karen and I would do some dailies, but we were the Sunday artists.2017, Mark Arnold, Pocket Full of Dennis the Menace
4. (attributive, informal) Describes someone who does something occasionally or casually, and therefore without skill.
   • Your face is the color of a Sunday swimmer who swallowed half the pool.2010 November 9, Rosemary Wells, On the Blue Comet, Candlewick Press, →ISBN, page 113
5. (attributive, informal) Describes something particularly fine and elegant, particularly something that could be worn to or used at church.
   • His father replies with a special tone of voice (his 'Sunday voice', which he also used for reading fairy tales): 'That is about the tragedy of human beings!'2002, Emanuel Zeylmans, Willem Zeylmans Van Emmichoven: An Inspiration for Anthroposophy : a Biography, Temple Lodge Publishing, →ISBN, page 9

See all 7 meanings of Sunday