"爷爷" 的英语为 "grandfather"。来源是英语中"grand"和"father"的组合，"grand"表示"高级的"或"伟大的"，"father"表示"父亲"，因此"grandfather"表示"祖父"。
例句:
"My grandfather is a retired teacher." (我的爷爷是一名退休的老师。)
"My grandfather always tells me stories about his youth." (我的爷爷经常给我讲他年轻时的故事。)
"I inherited my love of gardening from my grandfather." (我从我爷爷那里继承了我对园艺的热爱。)