grandfather

American  

[gran-fah-ther, grand-] / ˈgrænˌfɑ ðər, ˈgrænd- /

noun

1. the father of one's father or mother.

2. a forefather.

3. the founder or originator of a family, species, type, etc.; the first of one's or its kind, or the one being longest in existence.

   the grandfather of all steam locomotives.

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verb (used with object)

1. to exempt (something or someone) from new legislation, restrictions, or requirements.

   The law grandfathered all banks already operating at the time of passage. He was grandfathered into the pension plan.

grandfather British  

/ ˈɡrænd-, ˈɡrænˌfɑːðə /

noun

1. the father of one's father or mother

2. (often plural) a male ancestor

3. (often capital) a familiar term of address for an old man

4. dialect a caterpillar or woodlouse

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Etymology

Origin of grandfather

late Middle English word dating back to 1375–1425; grand-, father

Example Sentences

"From the smallest child to the oldest grandfather -- it is suitable for all ages."

From Barron's

Zhao, a woman sporting an intricately carved gold medallion on a necklace of jade beads and shimmering bangles on her wrist, brought her late grandfather's ring to the recycling machine.

From Barron's

Her show dogs to date, and her grandfather’s in the past, have earned many prizes at Westminster, including best-in-breed and best-in-group, along with scores of awards elsewhere.

From The Wall Street Journal

Valieva told an arbitration panel she tested positive because of "contamination" from her grandfather's heart medicine.

From Barron's

This gives the sheriff opportunities for enlightening visits with his grandfather.

From The Wall Street Journal

Related Words

• ancestor
• grandpa
• patriarch