Semicolon

A semicolon is a punctuation mark. It looks like this: ;

Use in English
In the standard English language, a semicolon has only two uses.  First, to connect two independent clauses into a single sentence without using an extra word. The semicolon is only used if the two sentences have a link. For example:
"I could tell that it was getting late; it was growing darker by the second."
The second use of a semicolon is to separate items in a series when the items contain parenthetical elements within themselves.  For example:
"The following crewmembers were on the bridge: James T. Kirk, captain of the
Enterprise; Mr. Spock, first science officer; Mr. Sulu, helmsman; Mr. Scott,
engineer; and Dr. McCoy, chief medical officer."

A semicolon is also used with a conjunctive adverb when joining two clauses.  In reality, this is the same as the first rule, but it looks different enough to sometimes cause concern.

For example:
"huzaifa, context in which all life exists; consequently, it is more than a political issue."

 Use in Arabic 
In Arabic, the semicolon is called "fasila manqoota" (اصلة منقوطة in Arabic) and is written upside-down (؛). It is used to combine two sentences when one sentence is a cause and the other is a result. For example:
"Your sister did not get high marks; she didn't study." (Arabic: لم تحقق أختك درجات عالية؛ لأنها لم تدرس) 

 Use in Greek 
In Greek, the question mark looks the same as the English semicolon.

Use in Computer Programming
A semicolon is sometimes used in programming. In programming languages such as C, semicolons are used to separate logical statements.

For example:

int main() {
  int x, y;
  x = 1; y = 2;
  printf("X + Y = %d", x + y);
  return 0;
}

References

Category:Punctuation