IPA: /ˈnaɪsər/
KK: /naɪsər/
More pleasant or agreeable than something else.
She is nicer than her brother.
Nicer → It is formed from 'nice' (from Old French *nice*, meaning foolish or ignorant, which evolved to mean pleasant or agreeable) and the comparative suffix '-er' (meaning more). The word 'nicer' means more pleasant or agreeable than something else.
Think of 'nice' meaning pleasant, and remember that 'nicer' means more pleasant than something else.