dad What is the Definition of dad?Noun:an informal term for a father; probably derived from baby talk Other meanings of dad (synonyms, cognates). ENRU dad папа Frequently viewed: topic definitionacross meaningindeed meaningusually meaningnearby meaninghive meaningsuccess definitiondefinition of allocateinsist definitionneighboring meaningwash meaningdefinition of twice A B C D E F G H I J K L M N O P Q R S T U V W X Y Z