SNS may refer to: Science and technology. Biology and medicine. Somatic nervous system or voluntary nervous system. Supplemental nursing system, to provide additional milk to a nursing infant. Sympathetic nervous system, part of the autonomic nervous system. Computing. Social networking service, social website. Amazon Simple Notification Service, a messaging and notification service for Amazon Web Services. Synthetic nervous system, a computational neuroscience model. Other uses in science and technology. Spallation Neutron Source, Oak Ridge, Tennessee, US.
https://en.wikipedia.org/wiki/SNS