There are multiple synonyms that can be used to describe a "big feed." Some common alternatives include a feast, banquet, spread, meal, or dinner. Other options include a smorgasbord, potluck, buffet, barbecue, or cookout. These terms all reference a large and often indulgent meal, typically served for a special occasion or celebration. Alternatively, more casual and informal synonyms could include a feast, chow down, pig out, or grub up. No matter which term is used, the underlying sentiment remains the same - a big feed is a time to come together with loved ones and enjoy delicious food and drink in abundance.