vanity

vanity /ˈvænəti/ noun
plural vanities
vanity
/ˈvænəti/
noun
plural vanities
Britannica Dictionary definition of VANITY
1 
[noncount] : the quality of people who have too much pride in their own appearance, abilities, achievements, etc. : the quality of being vain
2 
[count] : something (such as a belief or a way of behaving) which shows that you have too much pride in yourself, your social status, etc. — usually plural
3 
[count] US
b  : a bathroom cabinet that is covered by a sink and a countertop
4 
[noncount] formal + literary : the quality of being worthless or unimportant when compared to very serious things