Previous caution or care; caution previously employed to prevent misfortune or to secure good
A measure taken beforehand to ward off evil or secure good or success; a precautionary act.
To warn or caution beforehand.
To take precaution against.
Any device or mechanism intended to prevent harmful consequences.
A medicine which preserves or defends against disease; a preventive.
A prophylactic condom.
Serving to prevent or protect against an undesired effect, especially disease or pregnancy