It refers to the most basic sense that all people share with each other. An example is that everyone knows not to walk out in front of a speeding train. It is only common sense.
Rational decisions are thought out with common sense, irrational are not.
It is spelt 'sense'.
If you do something that is counter-intuitive, you are doing something that seems like it is the opposite of what common sense would tell you to do.
You use your common sense when you need to. THAT WHAT I SAID IS COMMON SENSE!
Common sense is not so common. My most common sense is my sense of humor. Some early American Colonist wrote a book called "Common Sense".
Common Sense was called 'common sense' because Thomas Paine chose to call it that.
Common Sense, The Crisis, The Rights of Man, Age of Reason.
Sense of wonder
If you mean the common sense by what everyone has, then yes, it is common because everyone has it. Not that they always use it.
Common sense refers to the practical understanding and judgment that is based on everyday experience rather than specialized knowledge. It involves using logic, reasoning, and intuition to make decisions and solve problems in a practical and sensible way.
Common Sense
Common sense is not common - Voltaire