Pops vs. Grandfather

Father, dad.

Example: ‘Hey, pops, I'm home.’;

By extension, another man old enough to be the speaker's father.

plural of pop(the sound and related meanings)

A father of someone’s parent.

(by extension) A male forefather.

To retain existing laws or rules only for people or organizations previously affected by them, and to apply new laws or rules to the unaffected people or organizations.

To retain existing laws or rules for (a person or organization previously affected by them).

A father's or mother's father; an ancestor immediately after the father or mother in lineal ascent.

the father of your father or mother

the father of one's father or mother.

the person who founded or originated something

Example: ‘Freud is often called the grandfather of psychoanalysis’;

exempt (someone or something) from a new law or regulation

Example: ‘smokers who worked here before the ban have been grandfathered’;