Onetime
Part of speech: adjective
Definition: Former. For a single instance.
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: The power of youth is the common wealth for the entire world. The faces of young people are the faces of our past, our present and our future. No segment in the society can match with the power, idealism, enthusiasm and courage of the young people.