Here are some examples of how "intro" is used in words:
* Introduction: This is the most common usage. It refers to the beginning of something, like a book, speech, or musical piece.
* Introvert: Someone who is primarily focused on their own thoughts and feelings.
* Introit: The opening verses of a psalm sung before the Mass in the Catholic Church.
* Introspective: Thinking about and examining one's own thoughts and feelings.
Essentially, "intro" is a shortened form of "introduction," and it signifies a starting point or a process of beginning.