A program or application that is not feature-complete and is not usually released to the public. Developers are usually still deciding on what features the program should have at this stage of software development. This stage comes before the alpha version, and is the first software development stage given to a program.

A method used to protect network traffic in WPA (Wi-Fi Protected Access) networks by requiring that all connected devices use the same manually entered password.

(finance, banking) A filing for bankruptcy by submitting to the court a virtually complete plan designed to avoid a protracted court-guided period of reorganization and debt restructuring.

(mathematics) An incomplete metric space with an inner product.

(medicine) A form of prevention, usually medication, that is taken before exposure to a pathogen, preventing development of disease after such exposure. Especially:

(US) An official document confirming that an applicant for a mortgage has been qualified to borrow a certain amount of money at, or below, a specific interest rate.

plural of pre-approval letter

plural of pre-packaged bankruptcy

plural of pre-Hilbert space

plural of pre-shared key