B1
having formally agreed to marry
Dictionary examples:
They got engaged after knowing each other for just one hour on a blind date. (0.0)
They got engaged at a pizza place because he couldn't afford a fancy restaurant. (0.0)
He was so excited to be engaged that he ran into a wall while celebrating. (0.0)
Debbie and Chris just got engaged. (30.8)
She was engaged to some guy in the army. (47.5)