COMMON VS. GENERAL

##Common

"happening often; existing in large numbers"

1 happening often; existing in large numbers or in many places
e.g. Jackson is a common American name.

e.g. It is a common spelling mistake

2 [only before noun ] ordinary; not unusual or special

e.g. The common garden frog

##General

"affecting all or most people, places, or things and normal, usual"

1 Affecting all or most people, places, or things

e.g. The general opinion  is that the conference was a success.

2 [ usually before noun ] normal; usual

e.g. There is one exception to this general principle.

##'General' means that sth applies to many situations.
##'Common' means that sth is readily available or present.

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