adjective difficult to fool or take advantage of; shrewd; wary; clever.A canny used-car customer can tell when he or she is truly getting a good deal.A detective needs a canny mind. See…

With the Wordsmyth Vocabulary Center activities, you can study the words of the week, play games with them, and assess your knowledge of their meanings with a quiz. Go to the Vocabulary…

adjective desirous of revenge; vengeful.He had cheated on her during their marriage, and she became vindictive during their divorce. See the full entry

transitive verb to put at risk; endanger.His reckless driving imperiled the lives of his passengers. See the full entry

noun the outer boundary of a circle or other curvilinear figure or area; perimeter.In the geometry class, students learned how to measure the circumference of various round objects like bicycle wheels and…