exaggerate
US /ɪɡˈzædʒ.ə.reɪt/
UK /ɪɡˈzædʒ.ə.reɪt/

1.
represent something as being larger, better, or worse than it really is
:
•
He tends to exaggerate his achievements.
•
Don't exaggerate; it wasn't that bad.
represent something as being larger, better, or worse than it really is