grandfather
US
UK grandfather n: (father of [sb]'s parent) (爸爸的爸爸)
SC 祖父，爷爷 zǔ fù ，yé ye
TC 祖父，爺爺
TC 祖父，爺爺
SC 外祖父，姥爷，外爷，外公 wài zǔ fù ，lǎo yé ，wài yé ，wài gōng(妈妈的爸爸)
Irene's grandfather is still very strong for his old age.
艾琳的祖父在年老时仍然老当益壮。
Grandfather n: formal (in direct address) (称呼，爸爸的爸爸)
SC 爷爷 yé ye
TC 爺爺
TC 爺爺
SC 外公，姥爷 wài gōng，lǎo yé(称呼，妈妈的爸爸)
The young man said, "Grandfather, tell me about your childhood."
那个年轻人说：“爷爷，给我说说你小时候的事。”
grandfather [sth] vtr: US (law: exempt)
SC 不受新规定限制，被豁免的 bèi huò miǎn de
The new regulations don't apply to this building, which already has all the permissions in place; it's been grandfathered.
新规定不适用于这栋所有权限已经到位的建筑，该建筑是被豁免的。
grandfather clock n: (tall freestanding clock)
SC 落地大座钟，落地大摆钟
great-grandfather n: (father of a grandparent)
SC 曾祖父 cēng zǔ fù
SC 曾外祖父 cēng zǔ fù，zēng wài zǔ fù
My great-grandfather fought in the First World War.
great-great-grandfather n: (grandfather of a grandparent)
SC 高祖父
TC 曾祖父
TC 曾祖父
SC 外高祖父
stepgrandfather, step-grandfather n: (husband of grandparent)
SC 继祖父
SC 教祖父
stepgrandfather, step-grandfather n: (father of parent's spouse)
SC 继祖父
SC 教祖父