"ie" can mean a number of things. The words "i.e." used in the English language to convey a meaning better is taken from the Latin "id est" meaning "that is" or "in other words". This is a widely used expression in the English language and makes the task of explaining something easier. It helps put something in another form or call it by a different name to aid understanding. "Canines i.e. Dogs make good pets" is an example of i.e. Being used in language. It is used as an abbreviation and in this way can mean a number of things including Internet Explorer which is a popular internet browser linked to windows in computers. "IE" for International English, this refers to the English language as the primary means of global communication. In engineering and science "IE" can mean information extraction, Industrial engineering, Institute for energy etc.