<p><strong>Adjective</strong></p><ul><li>gone by or elapsed in time: It was a bad time, but it's all past now.</li><li>of, having existed in, or having occurred during a time previous to the present; bygone: the past glories of the Incas.</li><li>gone by just before the present time; just passed: during the past year.</li><li>ago: six days past.</li><li>having formerly been or served as; previous; earlier: three past presidents of the club.</li><li>Grammar. designating a tense, or other verb formation or construction, that refers to events or states in time gone by.</li></ul><p><strong>Noun</strong></p><ul><li>the time gone by: He could remember events far back in the past.</li><li>the history of a person, nation, etc.: our country's glorious past.</li><li>what has existed or has happened at some earlier time: Try to forget the past, now that your troubles are over.</li><li>the events, phenomena, conditions, etc., that characterized an earlier historical period: That hat is something out of the past.</li><li>an earlier period of a person's life, career, etc., that is thought to be of a shameful or embarrassing nature: When he left prison, he put his past behind him.</li><li>Grammar. past tense.</li></ul><p><strong>Adverb</strong></p><ul><li>so as to pass by or beyond; by: The troops marched past.</li></ul><p><strong>Preposition</strong></p><ul><li>beyond in time; later than; after: past noon; half past six.</li><li>beyond in space or position; farther on than: the house just past the church.</li><li>in a direction so as to pass by or go beyond: We went past the house by mistake.</li><li>beyond in amount, number, etc.: past the maximum age for enlisting in the army.</li><li>beyond the reach, scope, influence, or power of: He is past hope of recovery.</li></ul>