RW is an acronym that is used to refer to a number of things, most commonly used to describe Read-Write functionality. In computer terms, RW refers to data storage devices such as CDs and DVDs that are capable of both reading and writing data. However, depending on the context of its usage, RW can mean different things. In aviation, RW stands for "Runway," while in literature and writing, it could be an abbreviation for ReWriter or RedWriter. Other synonyms for the acronym RW include Read-Write, Read/Write, Read-Write Access, and Read-Write Memory. Regardless of the meaning, RW is a versatile acronym that is popularly used across various fields and industries.