Will
Part of speech: noun
Definition: Desire, longing. (Now generally merged with later senses.) One's independent faculty of choice; the ability to be able to exercise one's choice or intention. One's intention or decision; someone's orders or commands. That which is desired; one's wish. The act of choosing to do something; a person's conscious intent or volition. A formal declaration of one's intent concerning the disposal of one's property and holdings after death; the legal document stating such wishes.
Part of speech: verb
Definition: To wish, desire. To instruct (that something be done) in one's will. To try to make (something) happen by using one's will (intention). To bequeath (something) to someone in one's will (legal document). To wish, desire (something). To wish or desire (that something happen); to intend (that). To habitually do (a given action). To choose to (do something), used to express intention but without any temporal connotations (+ bare infinitive). Used to express the future tense, formerly with some implication of volition, especially in first-person. Compare . To be able to, to have the capacity to.
Example sentence: Your attitude, not your aptitude, will determine your altitude.
Testament
Part of speech: noun
Definition: A solemn, authentic instrument in writing, by which a person declares his or her will as to disposal of his or her inheritance (estate and effects) after his or her death, benefiting specified heir(s).One of the two distinct revelations of the Judeo-Christian God's purposes toward man; a covenant; also, one of the two general divisions of the canonical books of the Biblical Scriptures, in which the covenants are respectively revealed: the Old Testament and the New Testament; -- often limited, in colloquial language, to the latter.A tangible proof or tribute.A credo, expression of conviction
Example sentence: It's really a testament to my parents, because I was active, curious and creative as a child, and my parents nurtured that. But I wouldn't say that I was a professional child actor at all. I was never the breadwinner of my family.