(military, US) Abbreviation of staff returns.

Abbreviation of sinoatrial node.

Alternative form of S-wave

(medicine) Abbreviation of status post: after.

Alternative form of 80s

Abbreviation of kilobyte per second.

(nautical) Initialism of motor ship. – a ship propelled by an internal combustion engine, such as a diesel engine, in contrast to sailing ships and steamships

Alternative spelling of S&L

(law) Abbreviation of South Africa.

(law) Abbreviation of South Korea.