Entry
Part of speech: noun
Definition: The act of entering. Permission to enter. A doorway that provides a means of entering a building. A small room immediately inside the front door of a house or other building, often having an access to a stairway and leading on to other rooms A small group formed within a church, esp. Episcopal, for simple dinner and fellowship, and to help facilitate new friendships An item in a list, such as an article in a dictionary or encyclopedia; a record made in a log, diary or anything similarly organized; a datum in a database. A term at any position in a matrix.
Example sentence: Each country is different. Keep an open mind, and you will able to find where the niche entry level lies - the areas where there are gaps. You have to keep an ear to the ground, and you can find a business opportunity.
Introduction
Part of speech: noun
Definition: The act or process of introducing.A means, such as a personal letter, of presenting one person to another.An initial section of a book or article, which introduces the subject material.
Example sentence: The key to growth is the introduction of higher dimensions of consciousness into our awareness.