favor – v. to prefer (someone) especially in an unfair way : to show that you like or approve of (someone) more than others
achievement – n. the state or condition of having achieved or accomplished something
preference – n. an advantage that is given to some people or things and not to others
perceive – v. to notice or become aware of (something)
drop out – phrasal verb to stop attending a school or university before you have completed your studies