HinKhoj Dictionary

figure something out - understand, find the answer (समझना)
fill something in - to write information in blanks, as on a form (फॉर्म में रिक्त स्थान पर भरना)
fill something out - to write information in blanks, as on a form (फॉर्म में रिक्त स्थान पर भरना)
fill something up - fill to the top (ऊपर तक भरना)
find out - discover (खोजना)