Acronym of search and rescue.
"The SAR team arrived at the crash site within an hour to begin their search and rescue operations."
"The sar was too big for my small room, so I had to move it outside."
A surname, from Khmer.
"The village elder told us that Mr. Sar was a respected name in his family history."
The word sar comes from the Khmer language, where it originally meant a specific type of plant. It traveled into English to refer to this same botanical species.