kill time noun 2verb 1forms 5 noun2 •The time it takes for something to kill something else. •(no longer used) Something which amuses, and serves to make time pass agreeably.For as to the devotees of the circulating libraries, I dare not compliment their pass-time, or rather kill-time, with the name of reading. — 1817 verb1 •(informal) To engage in an activity whose only purpose is to make the time seem to pass more quickly; to fill the time between activities.She had nothing better to do, so she went to the bowling alley to kill time. formskilled time · killing time · kills time · kill times · kill-times