Granddaddy vs. Grandfather — What's the Difference?

Difference Between Granddaddy and Grandfather
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Definitions
Granddaddy➦
A grandfather.
Grandfather➦
The father of one's father or mother.
Granddaddy➦
One that is the first, oldest, or most respected of its kind
The granddaddy of modern computers.
Grandfather➦
Exempt (someone or something) from a new law or regulation
Smokers who worked here before the ban have been grandfathered
Granddaddy➦
(informal) A grandfather.
Grandfather➦
The father of one's mother or father.
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Granddaddy➦
(informal) Something that is the greatest or most significant of its kind.
Grandfather➦
A forefather; an ancestor.
Granddaddy➦
The father of your father or mother
Grandfather➦
To exempt (someone or something) from a new regulation that prohibits or restricts something
The new ordinance restricts the size of billboards, but it grandfathers those erected before 1997.
Grandfather➦
A father of someone's parent.
Grandfather➦
(by extension) A male forefather.
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Grandfather➦
(computing) The archived older version of a file that immediately preceded the father file.
Grandfather➦
(transitive) To be, or act as, a grandfather to.
Grandfather➦
To retain discontinued laws or rules for (a thing, person or organization previously affected by them).
Grandfather➦
A father's or mother's father; an ancestor immediately after the father or mother in lineal ascent.
Grandfather➦
The father of your father or mother