Their use or non-use should replace the current definition as to what is an amateur and what is a professional.

The use of computer graphics replaced much of the manual activity in creating the artwork and converting the art into slides.

In general these considerations involve the use of land, labor and capital thereby replacing the notion of a common resource into a value based product.

He said that he told them a new "use of force" had replaced the old one and that it was subject to a Federal court's approval.

By the late 19th century this use had become normal and mostly replaced earlier terms for artillery units such as company or troop.

The use of tractors is becoming popular and is fast replacing the conventional ploughs.

Mr. Castelveter emphasized that the use of e-mail had not replaced other communications channels.

However, in many cases they are not entirely necessary, and their use replaces more stringent hygiene procedures.

Basically, it involves the use of atoms and molecules to replace more conventional transistors in electronics.

Women drilled in the use of muskets replace the mercenaries and samurai who had served the old government.