like1
Pronunciation: /lʌɪk/
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Definition of like
preposition
conjunction
informalnoun
adjective
adverb
Phrases
Origin:
Middle English: from Old Norse líkr; related to alike
In the sentence he’s behaving like he owns the place, like is a conjunction meaning ‘as if’, a usage regarded as incorrect in standard English. Although like has been used as a conjunction in this way since the 15th century by many respected writers, it is still frowned upon and considered unacceptable in formal English, where as if should be used instead.