© is a symbol indicating copyright; it has been in use for a little more than 100 years.
Copyright is symbolised with a little c in a circle.
copyright symbol is c with circle ©
A c in a circle.
A c inside a circle.
A c with a circle around it.
Copyright
The little c in a circle is the symbol for copyright.
A c with a circle around it is the 'copyright' symbol.
The letter "c" refers to "copyright". The circle-C symbol is easily recognized, even by people who do not understand English.
C and it is inside a circle
The copyright symbol looks like a lower case c with a circle around it. ©
'p' inside a circle means 'protected by copyright law' and you are not allowed to reproduce it without permission from the author