be a dead ringer for
US /bi ə dɛd ˈrɪŋər fɔr/
UK /bi ə dɛd ˈrɪŋər fɔr/
1.
to look exactly like someone else
:
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She could be a dead ringer for her grandmother when she was young.
•
That actor is a dead ringer for my old high school teacher.
to look exactly like someone else