<p><strong>Noun</strong></p><ul><li>A measure taken in advance to avert possible evil or to secure good results.</li><li>Caution employed beforehand; prudent foresight.</li><li><strong>Synonyms:</strong> circumspection, prudence, forethought.</li></ul><p><strong>Verb</strong></p><ul><li>(Used with object) To forewarn; put on guard.</li></ul>