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: simplistic definitioninformation definitionunfortunate in a sentencedefinition of entirelyinvaluable meaningperson definitiontopic meaningmultiplied meaningtransition definitionstraightforward in a sentenceinstinct meaningdefinition of overcome 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