there‧fore S1 W1 / ðeəfɔ $ ðerfɔr / 副词 formal

as a result of something that has just been mentioned :

Their car was bigger and therefore more comfortable.

Progress so far has been very good. We are, therefore, confident that the work will be completed on time.

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In everyday English, people usually use so rather than therefore :

It was late, so I didn’t stay long.

THESAURUS

therefore for this reason : She already had a lot of experience and therefore seemed the best candidate for the job.

so therefore. So is less formal than therefore , and is more common in everyday English : They had not eaten all day, so they were very hungry.

thus formal as a result of what you have just mentioned : The program is very simple and thus easy to run.

hence formal for this reason : This material is highly poisonous, hence the importance of careful handling.

as a result used when saying that because of a particular situation, something else happens or is true : Some people suffer from stress at work and become ill as a result. | Economic growth slowed down as a result of inflation.

consequently/as a consequence used when saying that because of a particular situation, something else happens or is true. Consequently and as a consequence are more formal than as a result : The disease attacks the plant, the flower does not open, and consequently no seeds are produced. | As a consequence of global warming, our climate is already starting to change.

this means that used when saying what the result of something is : If students arrive late, this means that lesson time is wasted.

for this reason used when explaining the reason for something : Spell check programs do not recognize when you have used the wrong word. For this reason, you must still read over your work carefully.