a period of indeterminate length (usually short) marked by some action or condition; "he was here for a little while"; "I need to rest for a piece"; "a spell of good weather"; "a patch of bad weather"
be sufficient; be adequate, either in quality or quantity; "A few words would answer"; "This car suits my purpose well"; "Will $100 do?"; "A 'B' grade doesn't suffice to get me into medical school"; "Nothing else will serve"