grandparent What is the Definition of grandparent?Noun:a parent of your father or mother Other meanings of grandparent (synonyms, cognates). ENRU grandparent дедбабушка Frequently viewed: issue meaninginterest definitionconcur meaningproject meaningdoubt meaningdepend meaningdefinition of oftendefinition of multipleshower meaningstay definitiondefinition of classdefinition of perspective 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