Here are some common ways to refer to software in a shortened form:
* SW: This is the most common abbreviation, but it's not always clear and can sometimes be mistaken for "southwest."
* S/W: This variation is also used, particularly in technical writing.
* Soft: This is a more informal way to refer to software, often used in conversation.
* App: This is commonly used for software designed for mobile devices.
* Program: This is a more general term that can refer to any software.
Ultimately, the best way to abbreviate "software" depends on the context and audience.