Oxford Advanced American Dictionary

Definition of like conjunction from the Oxford Advanced Learner's Dictionary

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like

conjunction
like pronunciation English laɪk like pronunciation American laɪk
 
(informal)1 in the same way asNo one sings the blues like she did.It didn't turn out like I intended.Like I said (= as I said before), you're always welcome to stay.2 as ifShe acts like she owns the place.
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You will find more information about this use of like at the entries for the verbs act, behave, feel, look and sound and in the note at as.