Gain entry to can be accomplished by using the word 'ACCESS, ' which is a six-letter word. ACCESS is defined as the right or ability to approach, enter, or use something. It can also refer to the means of approaching or entering such as a door, gate, or other physical barrier. ACCESS can also refer to the permission or right to enter or make use of something. In the context of gain entry to, ACCESS would refer to the right or ability to enter a certain place or area.