grandfather

the father of one's father or mother; a male parent’s father

abuelo, bisabuelo (en algunos casos)

Collocations grandfather clock

• My grandfather lives with us.

  Mi abuelo vive con nosotros.

a male ancestor who lived in the past; a man from an earlier generation, especially one's father’s or mother’s father

abuelo (de una persona famosa o histórica)

Collocations a famous grandfather

• The grandfather of the country's independence movement.

  El abuelo del movimiento de independencia del país.