Previous
Part of speech: noun
Definition: An existing criminal record
Part of speech: adjective
Definition: prior; occurring before something else, either in time or order. premature; occuring too soon.
Example sentence: When you have a child, your previous life seems like someone else's. It's like living in a house and suddenly finding a room you didn't know was there, full of treasure and light.
Past
Part of speech: adverb
Definition: in a direction that passes
Part of speech: preposition
Definition: beyond in place, quantity or time
Part of speech: noun
Definition: The period of time that has already happened, in contrast to the present and the future.The past tense.
Part of speech: adjective
Definition: Having already happened; in the past; finished.Relating to the past.(of a period of time) the one before this one
Example sentence: Life is divided into three terms - that which was, which is, and which will be. Let us learn from the past to profit by the present, and from the present, to live better in the future.