seniorityPronunciation: /siːnɪˈɒrɪti/Translate seniority | into French | into German | into Italian | into Spanish Definition of seniority noun [mass noun] 1the fact or state of being older or higher in rank or status than someone else:26 archbishops and bishops in order of seniority 2a privileged position earned by reason of longer service or higher rank:pay and benefits rise with seniorityseniority in other Oxford dictionaries Definition of seniority in the US English dictionary