n.
1.a statement that is assumed to be true and from which a conclusion can be drawn premise v.
1.set forth beforehand, often as an explanation
2.furnish with a preface or introduction
3.take something as preexisting and given
Idiom of the Day
cover one's tracks
to hide where one has been, to hide what one has done
The man was trying to cover his tracks but it was easy to see where he had been.