Microphone : Loud :: Microscope :?

As safe ans secure have same meaning in the same way protect and guard have same meaning.

As Chairman is the highest authority in a conference similarly Editor is in Newspaper.

As Myopia is disease of eye similarly pyorrhoea is a disease of teeth.

As 'Architect' makes 'Building' similarly 'Sculptor' makes 'Statue'.

As on melting, liquid is formed similarly on freezing solid is formed.

As Students read in College similarly Patients are treated in Hospital.

As Tree is found in Forest similarly Grass is found in Lawn.

As North-West is 135^o clockwise from South in the same were North-East is 135^o clockwise from the West.

As Cloth is made in a Mill, similarly Newspaper is printed in press.