v. set in motion or cause to begin; "The guide set the tour off to a good start"

v. direct attention to, as if by means of contrast; "This dress accentuates your nice figure!"; "I set off these words by brackets"

v. put in motion or move to act; "trigger a reaction"; "actuate the circuits"

v. leave; "The family took off for Florida"

v. make up for; "His skills offset his opponent's superior strength"