General resemblance:
* Resemble: This is the most general term, meaning to share similar features.
* Look like: A simple and straightforward phrase.
* Bear a resemblance to: Similar to "resemble", but slightly more formal.
Specific types of resemblance:
* Doppelganger: This word refers to someone who looks incredibly similar to another person, almost like a twin.
* Mirror image: This implies a perfect resemblance, like a reflection.
* Twin: This word literally means someone who shares the same parents and looks almost identical.
The best word to use depends on the specific context and the degree of similarity you want to convey.