Two mother-in-laws call each other "daughter-in-law."
Reciprocity captures the concept of two individuals thinking of each other simultaneously.
Yes, one example of a word with two "W" next to each other is "sawmill."
There is none in English, not counting compound words.
A word that sounds and is spelled the same in two different languages is called a cognate. This usually occurs when two languages share a common origin or have influenced each other throughout history.
A word made up of two other words is called a compound word.
you call them, "two trees wrapped around each other" geez...
An intersection
When two plates move away from each other it is called a divergent plate boundary because they are dividing.
This is a mixture.
Some call it plagiarism; some call it coincidence.
You call BOTH of them "Rabbi".
perpendicular.
Each one is a wife, making two wives.
Divergent plates
Local Area Network
This is called magnetic repulsion, which occurs when two magnets with like poles facing each other push away from each other due to their magnetic fields interacting.
When two tectonic plates slide past each other horizontally, it is known as a transform boundary. This can result in earthquakes due to the friction between the plates as they move.