grandfather clock

US /ˈɡrænd.fɑː.ðɚ klɑːk/
UK /ˈɡrænd.fɑː.ðɚ klɑːk/
"grandfather clock" picture
1.

a tall, freestanding pendulum clock enclosed in a tall, narrow wooden case

:
The antique grandfather clock chimed the hour in the hall.
My grandmother inherited a beautiful grandfather clock from her parents.