also: エスエヌエス
noun
social networking service; SNS; social media
Broadly covers social networking services and social media platforms; used in Japanese much like 'SNS' or 'social media' in English.
最近、新しいSNSが流行っている。
A new social networking service has been popular lately.
SNSで友達と写真を共有する。
I share photos with friends on social media.