application work out usage operation Participate in work reuse exertion use - habitually do one thing (use only in the past tense); "She used to simply call her mom each week but now she calls only often"; "I utilized to get sick when I ate in that dining hall"; https://remingtoniehib.bloggip.com/38111907/the-fact-about-how-to-use-conolidine-that-no-one-is-suggesting