If you think your answer is correct but it is marked as incorrect, then please do the following:
Click 'Report Word' that is at the bottom of the screen.
A popup window will appear with three different options:
My answer was right!
The audio doesn't match
Please click the first option, 'My answer was right!', and feel free to leave a description in the comments box, then click 'Send suggestion'
All reported words are reviewed by customer support, and if we agree with your suggestion, then we will add the word as a synonym, which means that your answer will now be accepted as a correct answer.