What could be [ OBJECT :: ][ schema_name ]. object_name in the
GRANT <permission> [ ,...n ] ON
[ OBJECT :: ][ schema_name ]. object_name [ ( column [ ,...n ] ) ]
TO <database_principal> [ ,...n ]
[ WITH GRANT OPTION ]
[ AS <database_principal> ]
Could it be a table or view?
OBJECT here refers to any of the things that exist in sys.objects. From the documentation for sys.objects, that could be any of
Mind you, not every permission makes sense for every type of object. For instance, you can't grant execute permission to a table. Indeed, not every object type can be the target of a grant (primary keys, for instance). The documentation for grant has a nice list near the bottom of each type of securable and link to a documentation page for what permissions can be granted to it.