Word: sweetheart
Part of speech: Noun
Syllables: sweet
heart
Definition: A person very much liked or loved by someone, especially when both partners are young.
Morphemes:
Affix: sweet
Language: en
PoS: Adjective
Meaning: Romantically fixated, enamoured with, fond of
Affix: heart
Language: en
PoS: Noun
Meaning: A term of affectionate or kindly and familiar address.