specify

　　1.specify as a condition or requirement in a contract or agreement; make an express demand or provision in an agreement;

　　The will stipulates that she can live in the house for the rest of her life

　　2.determine the essential quality of

　　3.decide upon or fix definitely;

　　fix the variables

　　4.be specific about;

　　Could you please specify your criticism of my paper?

　　5.define clearly;

　　I cannot narrow down the rules for this game

　　6.design or destine;

　　She was intended to become the director

　　7.select something or someone for a specific purpose;

　　The teacher assigned him to lead his classmates in the exercise