application exercise usage operation Perform employment reuse exertion use - habitually do a thing (use only in the past tense); "She utilized to get in touch with her mother each week but now she calls only occasionally"; "I accustomed to get sick After i ate in that eating corridor"; https://proleviatenaturespainkill42197.blogacep.com/43216195/an-unbiased-view-of-how-to-use-conolidine