Whew/hwjuː/ Definition 1 of 2Pro Tip 1/3Sigh of Relief Used when feeling relieved after a stressful situation or close call. Whew, the test was tough, but I passed! Pro Tip 2/3Exhaustion Indicator Express the feeling of being very tired, especially after doing something strenuous. Whew, that workout was intense! Pro Tip 3/3Personal Achievement Suggests satisfaction with completing a difficult or lengthy task. Whew, I finally finished writing my essay!