be·ware 
/bɪˈweɚ/ verb
/bɪˈweɚ/ verb : to be careful : to act in a way that shows you know that there may be danger or trouble — used only as beware or to beware [no obj] ▪ A ghostly voice cried “Beware!” ▪ Let the buyer beware. ▪ He told them to beware. — often + of ▪ The sign said “Beware of the dog.” [+ obj] ▪ The restaurant's food is excellent, but beware the chili if you don't like spicy food.
