“similar” – English explanatory dictionary

adj very much like someone or something but not exactly the same ○ Here is the old lampshade – do you have anything similar to replace it? ○ The two cars are very similar in appearance. ○ Our situation is rather similar to yours. Synonym alike. Antonym dissimilar

a. [F. similaire, fr. L. similis like, similar. See Same, a., and cf. Simulate.]
1. Exactly corresponding; resembling in all respects; precisely like.
2. Nearly corresponding; resembling in many respects; somewhat like; having a general likeness.
3. Homogenous; uniform. [R.] Boyle. Similar figures (Geom.), figures which differ from each other only in magnitude, being made up of the same number of like parts similarly situated. — Similar rectilineal figures, such as have their several angles respectively equal, each to each, and their sides about the equal angles proportional. — Similar solids, such as are contained by the same number of similar planes, similarly situated, and having like inclination to one another.

n. That which is similar to, or resembles, something else, as in quality, form, etc.