[noncount] :the quality of people who have too much pride in their own appearance, abilities, achievements, etc. :the quality of being vain

[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

[count] US

dressing table

a bathroom cabinet that is covered by a sink and a countertop

[noncount] formal + literary :the quality of being worthless or unimportant when compared to very serious things