Definition of turn round:
(v) :
(intransitive) To turn so as to be facing in the opposite direction.
(v) :
(intransitive) To revolve or rotate around a centre.
(v) :
(intransitive) To change one's opinion or attitude (especially when becoming hostile etc.).
(v) :
(transitive) To put into an opposing position; to reverse.
(v) :
(transitive, colloquial) To process; to complete work on (something), especially with a view to sending it on in a finished state.
(v) :
(transitive) To make (a ship, airplane etc.) ready for departure.