sweetheart
//ˈswiːt.hɑːrt//
Noun
sweetheartSingular
sweetheartsPlural
1
A person with whom someone is having a romantic relationship; a boyfriend or girlfriend.
She has been my sweetheart since high school.
2
A term of endearment used to address someone affectionately.
Good morning, sweetheart. Did you sleep well?
3
A kind, generous, or lovable person.
She's such a sweetheart—she always helps everyone.