阳奉阴违

outward devotion but inner opposition (idiom); to pay lip service / to agree overtly, but oppose in secret

surname Yin

overcast (weather) / cloudy / shady / Yin (the negative principle of Yin and Yang) / negative (electric.) / feminine / moon / implicit / hidden / genitalia

variant of 陰|阴[yin1]

to offer (tribute) / to present respectfully (to superior, ancestor, deity etc) / to esteem / to revere / to believe in (a religion) / to wait upon / to accept orders (from superior)

positive (electric.) / sun / male principle (Taoism) / Yang, opposite: 陰|阴[yin1]

to disobey / to violate / to separate / to go against