What does "parenthesis" mean? Could you please give some examples of showing parenthesis?
I believe that it is most often used as the name of the marks ( and ). (The two together form parentheses.)
Parentheses are used to indicate that some remark (or phrase) is not essential to a sentence. Parenthetical remarks (remarks enclosed in parentheses or similarly set off) are sometimes offered for further clarification or sometimes with humorous intent.
The word "parenthesis" can also be used for a period of time, especially an interlude ("a time between").
Example: "I find the off-season for my sport a boring parenthesis."