IPA: /ˈlɪtəˌmeɪt/
KK: /ˈlɪtərˌmeɪt/
One of the young animals born at the same time from the same mother, especially in dogs or cats.
My dog has a littermate that looks just like him.
Littermate → It is formed from "litter" (from Old French *litiere*, meaning a bed or a place to lie down) and "mate" (from Old English *gemetta*, meaning a companion or associate). The word "littermate" refers to a companion from the same litter, typically used in the context of animals, especially puppies or kittens, that were born together.
Think of 'litter' as a group of animals born together and 'mate' as a companion. This helps you remember that a 'littermate' is a companion from the same group.