What is the meaning of Gangsa?

Alternative form of ganza (type of metal).

classical musical instrument or ensemble of instruments

bronze

goose

brass; bell-metal

a shallow hand-held copper or brass gong, extensively used in dances

alternative form of gansa

bronze

brass, bell-metal

booby, gannet (family Sulidae spp.)

romanization of ꦒꦁꦱ

bronze (alloy)

brass gong with convex side and forked stick as a handle

obsolete form of gansa

Source: wiktionary.org