JUSTIFY

[verb] [T] - to give or to be a good reason forI can't really justify taking another day off work [+ verb-ing]I hope you're able to justify yourself/your actions (= give a good reason for what you have done).These recommendations will need to be justified to the committee before they can be implemented.The results of the study have certainly justified the money that was spent on it.Are you sure that these measures are justified?I'm sure I'll be able to justify your faith in me (= will be able to do what you expect me to do).