app(A set of instructions that a computer uses to perform a specific task, such as word processing, accounting, or data management); application(A set of instructions that a computer uses to perform a specific task, such as word processing, accounting, or data management)
WOPI application(A web application server, such as Office Web Apps Server, that uses WOPI and WOPI conventions to integrate with a host server, and is designed to view and edit files stored by the host)
Multi-Factor Authentication app(An application that can be installed on a user's mobile device to receive notifications and to verify that their sign in attempt was valid)
