1.the time that has elapsed;
forget the past
2.a earlier period in someone's life (especially one that they have reason to keep secret);
reporters dug into the candidate's past
3.a verb tense that expresses actions or states in the past
4.earlier than the present time; no longer current;
time past
5.of a person who has held and relinquished a position or office;
a retiring member of the board
6.a verb tense or other construction referring to events or states that existed at some previous time;
past participle
7.so as to pass a given point;
every hour a train goes past