Synonym: gramps, grandad, granddad, granddaddy, grandpa. Similar words: father, grand, the rank and file, grant, a grand, grandmother, immigrant, grandparent. Meaning: ['grændfɑðə(r) /-fɑː-] 
n. the father of your father or mother.
n. the father of your father or mother. 151. Her grandfather rushed , quick with her to another window, he let her enjoy the Rose Garden.
152. At the moment, his grandfather, lying weakly in the reclining chair, looked very worn - out.
153. His grandfather was a stonecutter, and he was very poor.
More similar words: father, grand, the rank and file, grant, a grand, grandmother, immigrant, grandparent, grandchild, old-fashioned, fatal, fatigue, send for, handful, stand for, back and forth, and function, first and foremost, gather, math, leather, at hand, feather, death, baths, gray, grab, athlete, at heart, at home.