dong

Concise Oxford English Dictionary © 2008 Oxford University Press:
dong1

▶verb

• 1 (of a bell) make a deep resonant sound.

• 2 Austral./NZ informal hit or punch.

▶noun

• 1 a deep resonant sound.

• 2 Austral./NZ informal a punch.

• 3 vulgar slang a man's penis.

Concise Oxford English Dictionary © 2008 Oxford University Press:
dong2

▶noun the basic monetary unit of Vietnam, equal to 100 xu.

– origin from Vietnamese dông ‘coin’.