meaning: male, powerful
雄弁 == yuubin == (noun, adjective that takes な) oratory, eloquence
Right radical is 'bird'. Left radical is a
character only found in Chinese, meaning 'arm', which here acts
phonetically to express 'fine/showy'. 'Fine/showy bird' was a reference
to a brightly-feathered male bird. The character has come to mean
'male' in general'.
suggests as a
mnemonic: 'Male bird has strong arms and elbows.'