Sunday
/ˈsʌndeɪ/
Definition 1 of 2
Pro Tip 1/3Weekend Context
Sunday is generally considered part of the weekend when many people relax or spend time with family. 
I'm planning a family picnic for this Sunday.
Pro Tip 2/3Cultural Significance
In many cultures, Sunday has religious significance as a day of worship and rest. 
On Sunday, many families attend their local church.
Pro Tip 3/3Non-Working Day
In many countries, Sunday is a non-working day, and businesses may have reduced hours. 
The store closes early on Sundays.