What effect does the word but have?

Answer 1

The word 'but' in a sentence states a contradiction between the two halves of the sentence.I loved my mother, but I hate her drinking.

I wanted to go to Harvard, but I had poor grades.

Answer 2

The word "but" is a conjunction used to introduce a contrasting or limiting element in a sentence. It indicates a change in direction or emphasis, often highlighting a contradiction or conflict within the sentence.