The term 'whet' can be used to describe a variety of activities that STIMULATE, CHALLENGE, EXCITE, AWAKEN, KINDLE, appetize, WAKEN, EDGE, WAKE, TEMPT, GRIND, AROUSE, HONE, and SHARPEN. STIMULATE means to stir up interest or activity in something, while CHALLENGE means to confront with difficulties or problems. EXCITE means to stir up strong emotion or feeling, while AWAKEN means to cause to become conscious or aware. KINDLE means to stir up or set alight, while APPETIZER means something that stimulates the appetite. WAKEN means to rouse from sleep, while EDGE means to provide with a border or EDGE. WAKE means to become or cause to become conscious, while TEMPT means to entice or attract. GRIND means to reduce to small particles by crushing, while AROUSE means to stir up or provoke. HONE means to SHARPEN or make more acute, while SHARPEN means to make or become sharp or sharper.