A "champagne reception" is a fancy gathering or celebration where people are welcomed with glasses of champagne, a type of sparkling wine. Full definition
About 12 families attended each of the three public champagne reception open houses we hosted. (realtormag.realtor.org)
The event featured «an elegant champagne reception at the rooftop terrace overlooking the Hudson River.» (nypost.com)
The films premiered Monday, October 3rd, 2016 to a packed house at the iconic Lark Theater complete with red carpet arrivals and champagne reception on the brink of the Mill Valley Film Festival season. (goldengatesir.com)