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Phonetics
/ˈswiːtˌhɑːt/
/ˈswitˌhɑɹt/
noun
A person who is always very kind.
Example: She is such a sweetheart: she never complains about me being late.A person very much liked or loved by someone, especially when both partners are young.
Example: John married his high-school sweetheart in 1981.A female member of a college or university fraternity.