Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb beware
1 sense of beware
Sense 1
beware, mind -- (be on one's guard; be cautious or wary about; be alert to; "Beware of telephone salesmen")
=> watch, look out, watch out -- (be vigilant, be on the lookout or be careful; "Watch out for pickpockets!")