Therefore is on the Academic Vocabulary List.
therefore is one of the 1000 most common headwords.
there - therefore - they

Pronunciation change

Preposition change

Preposition
therefore

  1. You use therefore to show that something was as a result of what was previously stated.
    He was sick with the flu and, therefore, did not come.
    Of course, words can mean different things. It is important therefore to understand, first, the meaning behind words.