The acronym "SaaS" stands for Software as a Service within the context of cloud computing. SaaS delivers software applications over the internet, allowing users to access them via a web browser without needing to install or maintain them locally. This model offers benefits such as automatic updates, scalability, and cost-effectiveness, as users typically pay a subscription fee instead of hefty upfront costs. Popular SaaS solutions include tools for customer relationship management (CRM), email, and collaboration.