affair

affair /əˈfeɚ/ noun
plural affairs
affair
/əˈfeɚ/
noun
plural affairs
Britannica Dictionary definition of AFFAIR
1 
affairs [plural] : work or activities done for a purpose : commercial, professional, public, or personal business
2 
[count] : a matter that concerns or involves someone
3 
[count] : a secret sexual relationship between two people : love affair
— often used in the phrase have an affair
— often + with
4 
[count]
a  : a social event or activity
b  : an event or series of events that usually involves well-known people
— often used with proper names
5 
[count] informal : something made or produced : an object or thing