Definitions
1.NounA father of someone's parent. .mw-parser-output .defdate{font-size:smaller}
2.NounA male forefather.
3.NounThe archived older version of a file that immediately preceded the father file.
4.VerbTo be, or act as, a grandfather to.
5.VerbTo retain discontinued laws or rules for (an object, individual or organization previously affected by them).