What is the correct meaning of the phrase "get rid of"?

• The required answer is - To become free from something.

• Get rid of
- English Meaning: to make yourself free of somebody/something that is annoying you or that you do not want; to throw something away.
- Bangla Meaning: মুক্তি লাভ করা, পরিত্রাণ লাভ করা

• Example Sentence: We have been campaigning to get rid of the car tax for 20 years.
- Bangla Meaning: আমরা ২০ বছর ধরে গাড়ির উপর কর ছাড়ের জন্য প্রচারণা চালিয়ে যাচ্ছি।

Source: Website Lecture, Oxford Dictionary.