He was forced to decline due to a previous 'engagement'. [='commitment, appointment']
She surprised everyone by breaking off her yearlong 'engagement'.
She's been offered several speaking 'engagements'.
(..) Really? Yeah. Oh, great. Hey, what's- what's, uh- what's this? This is for your engagement, man. You're a lucky, lucky dude. And, uh, congratulations to you. Oh, right. No, no, no. That's not happening any more. We're not, uh- We're not engaged. (..)2009 TvShow: It's Always Sunny in Philadelphia Title: The Waitress Is Getting Married Season: 5 Episode 5