Precaution

n.	1.	Previous caution or care; caution previously employed to prevent mischief or secure good; as, his life was saved by precaution. They [ancient philosophers] treasured up their supposed discoveries with miserable precaution. - J. H. Newman.
	2.	A measure taken beforehand to ward off evil or secure good or success; a precautionary act; as, to take precautions against accident.
v. t.	1.	To warn or caution beforehand.
	2.	To take precaution against.

Noun	1.	precaution - a precautionary measure warding off impending danger or damage or injury etc.; "he put an ice pack on the injury as a precaution"; "an insurance policy is a good safeguard"; "we let our guard down" Synonyms: safeguard, guard
	2.	precaution - the trait of practicing caution in advance
	3.	precaution - judiciousness in avoiding harm or danger; "he exercised caution in opening the door"; "he handled the vase with care" Synonyms: care, forethought, caution

alertness, anticipation, apprehension, attention, canniness, care, caution, cautiousness, chariness, circumspection, cover, discreetness, discretion, escape, forearming, forebode, forehandedness, foresightedness, forethoughtfulness, forewarn, give advance notice, insurance, measures, portend, precautions, precautiousness, premonish, prenotify, preventive measure, prewarn, protection, providence, provision, prudence, safeguard, steps, steps and measures, tell in advance, vigilance, wariness, watchfulness