"Large family gatherings" refers to occasions or events where many family members come together to spend time with each other and celebrate something, such as a holiday or special occasion. Full definition
However, I recommend it because it's perfect for large family gatherings where you don't really have the extra seat for a booster at the table. (ourfamilyworld.com)
They wanted something youthful, fresh and modern, with ample room to host large family gatherings for their kids and grandchildren. (styleathome.com)
I have made this several times in the fall and winter, for just our family as well as larger family gatherings. (chaosisbliss.com)