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English definition of “but”


conjunction  /bʌt, bət/ us  

but conjunction (DIFFERENCE)

used to express a difference or to introduce an added statement: You can take Route 14 to get there, but it may take you a little longer. We enjoyed our vacation a lot, but it was expensive.


preposition  /bʌt, bət/ us  

but preposition (EXCEPT)

except: Nobody but John was willing to talk to her. This car has been nothing but trouble – it’s always breaking down!
(Definition of but from the Cambridge Academic Content Dictionary © Cambridge University Press)
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