relevancerel‧e‧vance /ˈreləvəns/ ●●○ AWL (also rel‧e‧van‧cy /ˈreləvənsi/) noun [uncountable] 
the quality of directly relating to something that is being discussed or considered OPP irrelevancerelevance of
He didn’t realize the relevance of what he had seen.relevance to They have no relevance to the story.of relevance to something/somebody This book will be of particular relevance to chemists.
the quality of directly relating to something that is being discussed or considered OPP irrelevancerelevance of He didn’t realize the relevance of what he had seen.relevance to They have no relevance to the story.of relevance to something/somebody This book will be of particular relevance to chemists.