Brood/bruːd/ Definition 1 of 4Pro Tip 1/3Family Focus Use 'brood' when referring to a whole family of young ones together, especially with animals or birds. The swan led her brood across the pond. Pro Tip 2/3Numbers Implied 'Brood' suggests several offspring, rather than just one or two. The farmer's proud of his large brood of piglets. Pro Tip 3/3Not for Humans While 'brood' can refer to human families, it might feel impersonal or humorous. They arrived at the picnic with their whole brood in tow.