No may refer to any of the following:
In general, no is a word expressing a negative response. For example, a student may respond “no” to the question “Have you read a chapter of your computer science book?”
With a direction, No is an abbreviation used for North.
With numbers, No. is an abbreviation for number. For example, “serial number” may be written as “serial no.”
The Internet domain suffix .no is short for Norway.
