admittance
n.the act of letting someone enter a place. It can also mean the permission to join a group or start a new job.
n.the act of allowing entry into a place or the granting of permission to join an organization. Often used in legal or formal contexts to describe the right of access.
“The security guard refused admittance to the building.”
“The university granted her admittance to the graduate program after reviewing her research proposal.”
“The court ruled that the defendant's admittance to the crime was not a confession, as it was made under the influence of a hypnotic suggestion.”
From admit + -ance. Sense 5 was coined by electrical engineer, mathematician and physicist Oliver Heaviside in 1887.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.