lookalike
Word family
Synonym discussion
Sense: noun/1
'Lookalike' is the most general of these words and can refer to people or objects. A 'double' is nearly always a person who bears an uncanny resemblance to another person, often used in formal contexts (e.g. 'the president's body double'). 'Clone' suggests an exact copy created through technical means — using it for a person is informal and exaggerated. 'Impersonator' specifically describes someone who performs as a celebrity, not just someone who happens to look like them. 'Replica' applies to objects only, emphasising careful reproduction of details. For example: the street performer was a passable Elvis lookalike, but a professional impersonator would have cost far more. The vase in the window was such a perfect replica that even the museum curator had to look twice.
Common collocations
Etymology
A compound word formed from 'look' (to see or appear) and 'alike' (similar), first recorded in the 1930s in American English. It was popularised through show business, where lookalikes of film stars were hired for publicity or performance.