Definition of look after phrasal verb from the Oxford Advanced Learner's Dictionary

  

look after

 phrasal verb
phrasal verb
 
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Phrasal Verbs

    look after somebody

    |

    look after something

    |

    look after yourself

    (especially British English)
     
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  1. 1  to be responsible for or to take care of somebody/something Who's going to look after the children while you're away? I'm looking after his affairs while he's in hospital. Don't worry about me—I can look after myself (= I don't need any help). Which Word?take care of / look after / care for You can take care of or, especially in British English, look after someone who is very young, very old, or sick, or something that needs keeping in good condition: We’ve asked my mother to take care of/​look after the kids while we’re away.You can borrow my camera if you promise to take care of/​look after it. In more formal language you can also care for someone: She does some voluntary work, caring for the elderly, but care for is more commonly used to mean ‘like’: I don’t really care for spicy food.
  2. 2to make sure that things happen to somebody’s advantage He's good at looking after his own interests.
See the Oxford Advanced American Dictionary entry: look after