The main kind of problem which I always face in English language is my inability to find out the difference between two similar words . Now I can't really understand the difference between "constitution" and "structure". I'd be more than happy if someone guides me to get the difference.
First and foremost, the words constitution and structure are considered synonyms.
That being said, I would use them slightly differently in my own speech and writings. I would choose the word constitution when talking about what something is made of, while I would use structure to talk about how it was made. This may be a difference from others, or a regional distinction. The definition of structure supports my own definition; the word structure is used to describe:
Likewise, the two main definitions of constitution are as follows:
Therefore, I would conclude that both constitution and structure can be used to describe how something is made. Structure tends to refer more to the arrangement of the entities the object is composed of, while constitution refers to the identity of the entities themselves.