to make or become less tight or tense or less worried, etc; to rest completely.
to act as, or give, a statement by the maker that something will work for a certain period of time; to state that something is true, definite, etc.
the state or quality of being convenient; freedom from trouble or difficulty; any means of giving ease or comfort.
having an even surface without sharply raised or lowered places, points, lumps, etc; not rough.