seniority
noun
[ siːnɪˈɒrɪti ]
• the fact or state of being older or higher in rank or status than someone else.
• "26 archbishops and bishops in order of seniority"
Similar:
rank,
standing,
primacy,
superiority,
precedence,
priority,
longer service,
age,
greater age,
higher rank,
• a privileged position earned by reason of longer service or higher rank.
• "pay and benefits rise with seniority"