A "birthday celebration" refers to a gathering or event where people come together to commemorate and have fun on the day someone was born. Full definition
I also provided safe cupcakes for birthday celebrations frozen in the school freezer for «just in case» a party occurred! (home.allergicchild.com)
Here's some photos from last night's birthday celebration in my fierce outfit! (sophieandtrey.com)
Another study found that a typical kindergarten birthday celebration at school could include more than 400 calories — that's about a third of what such young kids need in a whole day. (thelunchtray.com)