Noun retirement has 3 senses
  1. retirement - the state of being retired from one's business or occupation
    --1 is a kind of
    status, position
    Derived form: verb retire1
  2. retirement - withdrawal from your position or occupation
    --2 is a kind of
    termination, ending, conclusion
    --2 has particulars: hibernation; rustication
    Derived forms: verb retire2, verb retire1
  3. retirement, retreat - withdrawal for prayer and study and meditation; "a religious retreat"
    --3 is a kind of withdrawal