Access

the right to enter

the right to obtain or make use of or take advantage of something (as services or membership)

a way of entering or leaving

a code (a series of characters or digits) that must be entered in some way (typed or dialed or spoken) to get the use of something (a telephone line or a computer or a local area network etc.)

(computer science) the operation of reading or writing stored information

the act of approaching or entering

obtain or retrieve from a storage device

reach or gain access to