Admission, n.
Etymology: [L. admissio: cf. F. admission. See Admit.]
1. The act or practice of admitting.
2. Power or permission to enter; admittance; entrance; access; power to approach. What numbers groan for sad admission there! Young.
3. The granting of an argument or position not fully proved; the act of acknowledging something The too easy admission of doctrines. Macaulay.
4. (Law)
5 more senses
Acquiescence or concurrence in a statement made by another, and distinguishable from a confession in that an admission presupposes prior inquiry by another, but a confession may be made without such inquiry.
5. A fact, point, or statement admitted; as, admission made out of court are received in evidence.
6. (Eng. Eccl. Law)
Declaration of the bishop that he approves of the presentee as a fit person to serve the cure of the church to which he is presented. Shipley.
Syn. -- Admittance; concession; acknowledgment; concurrence; allowance. See Admittance.
Shades of meaning
Fernald has no entry of its own for admission; he lists it under entrance.
Where he writes about it:
Entrance, the act of entering, refers merely to the fact of passing from without to within some enclosure; admission and admittance refer to entering by or with some one's consent, or at least to opportunity afforded by some one's act or neglect. — from entrance
We may effect or force an entrance, but not admittance or admission; those we gain, procure, obtain, secure, win. — from entrance
Admittance refers to place, admission refers also to position, privilege, favor, friendship, etc. — from entrance
An intruder may gain admittance to the hall of a society who would not be allowed admission to its membership. — from entrance