Some common synonyms of similarity are analogy, likeness, resemblance, and similitude. While all these words mean "agreement or correspondence in details," likeness implies a closer correspondence than similarity which often implies that things are merely somewhat alike.

These are words and phrases related to similar. Click on any word or phrase to go to its thesaurus page. Or, go to the definition of similar. I have a sofa really similar to yours. She's a lot like her mother. The girls look alike. My cousin and I are quite close in age.