[ seen-yawr-i-tee, -yor- ]
See synonyms for seniority on
noun,plural sen·ior·i·ties for 2.
  1. the state of being senior; priority of birth; superior age.

  2. 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.

Origin of seniority

1400–50; late Middle English <Medieval Latin seniōritās, equivalent to Latin seniorsenior + -itās-ity

Words Nearby seniority Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use seniority in a sentence

British Dictionary definitions for seniority


/ (ˌsiːnɪˈɒrɪtɪ) /

nounplural -ties
  1. the state of being senior

  2. precedence in rank, etc, due to senior status

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Cultural definitions for seniority


Length of service on a job. Seniority may be considered in making decisions about wages, layoffs, and other working conditions.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.