Synonyms for Retirement:

n.

leave, vacate, recession, departure, step aside, quit, stand-down, removal, secession, evacuation, arrival, resign, retire, hand in your notice/resignation, entrance, regression, separation, give/hand in (your) notice, bow out. include, Reclusion. forward, fallback, pullback, pullout. act (noun)
retreat.
departure (noun)
retreat.
leave (noun)
leave.
leaving (noun)
departure.
relinquishment (noun)
abdication.
resignation (noun)
discontinuance, cessation, abandonment, acceptance, rejection, abdication, relinquishment, Disclamation, withdrawal, renouncement, surrender, termination, resignation.
retirement (noun)
retreat.
retreat (noun)
pullout, pullback, fallback, evacuation, withdrawal.
seclusion (noun)
remoteness, aloofness, separation, sequestration, retreat, Reclusion, separateness, concealment.

Other synonyms:

pullout, pullback, fallback, departure, Reclusion. sequestration. detachment
isolation.
withdrawal
secession.

Usage examples for retirement

  1. A pregnant woman stops working after six months and goes into retirement – The Tribes and Castes of the Central Provinces of India Volume II by R. V. Russell
  2. He takes the place left vacant by the daughter's retirement – Pygmalion by George Bernard Shaw
  3. She lived in much retirement and had so many virtues that she made herself respected all her life, which was long. – The Memoirs of Louis XIV., Volume 9 And His Court and of The Regency by Duc de Saint-Simon