Verb bow out has 2 senses
  1. chicken out, back off, pull out, back down, bow out - remove oneself from an obligation; "He bowed out when he heard how much work was involved"
    --1 is one way to retire, withdraw
    Sample sentences:
    Somebody ----s
    Somebody ----s PP
  2. bow out, withdraw - retire gracefully; "He bowed out when he realized he could no longer handle the demands of the chairmanship"
    --2 is one way to retire
    Sample sentence:
    Somebody ----s
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