similarity
n. C / Un. the way in which two or more things are alike. You use this when you notice that different things share the same features or qualities.
n. the quality or state of being alike; a point or feature that is shared by two or more entities. In mathematics, it refers to the property of having the same shape regardless of size.
There is a strong similarity between the two brothers.
The similarity in their painting styles suggests they both studied under the same master.
While the two theories share a superficial similarity, a closer examination of their core premises reveals fundamental differences in how they approach human behavior.
From French similarité. Morphologically similar + -ity
Often followed by the preposition 'between' when comparing two things, or 'to' when comparing one thing to another.
the similarity with the two carsthe similarity between the two carsWhen discussing a shared quality of two distinct items, 'between' is the standard preposition.