adjective
always used before a noun :having existed in a time before the present :from, done, or used in an earlier time
always used before a noun - used to refer to a time that has gone by recently
always used before a noun - used to say what someone or something was in the past
used to describe something that ended or was completed in the past
preposition
at the farther side of (something) :beyond (a particular place)
up to and beyond (a person or place)
later than (a time)
older than (an age)
beyond the age for (something)
beyond or no longer at (a particular point)
I wouldn't put it past (someone)
used to say that you would not be surprised if someone did something bad
past it
Brit informal :too old to do something or to be useful
noun
plural pasts
[noncount] :an earlier time :the time before the present
usually used with the
[count] :the events of a person's life, of a place, etc., before the present time - usually singular
the past grammar :past tense
blast from the past
adverb
to and beyond a certain point or time