Definition of Sian:
(adj) :
(colloquial, Singapore, Singlish) Bored, weary or fed-up; tired (of something).
(adj) :
(colloquial, Singapore, Singlish) Repetitive and boring, wearisome.
(n) :
A female given name from Welsh [in turn from Hebrew].
(n) :
A surname.
(n) :
An endangered language spoken in the Belaga, Sarawak District in east Malaysia. It has no written form.
(n) :
Alternative form of Xi'an. [The provincial capital of Shaanxi, China; a subprovincial city in central China famed as the former capital of numerous Chinese dynasties, also known as Chang'an among other historical names.]