<p><strong>Noun:</strong></p><ul><li>the state of being senile; especially the weakness or mental infirmity of old age.</li><li>priority, precedence, or status obtained as the result of a person's length of service, as in a profession, trade, company, or union: First choice of vacation time will be given to employees with seniority.</li></ul><p><strong>End of Response</strong></p>