gong vs tam-tam

gong and tam-tam both are nouns.

Word	Noun	Adjective	Verb	Adverb
gong	Yes	No	Yes	No
tam-tam	Yes	No	No	No

As nouns, gong and tam-tam are synonyms defined as:

gong and tam-tam: a percussion instrument consisting of a metal plate that is struck with a softheaded drumstick

gong (noun)	tam-tam (noun)
a percussion instrument consisting of a metal plate that is struck with a softheaded drumstick	a percussion instrument consisting of a metal plate that is struck with a softheaded drumstick
a percussion instrument consisting of a set of tuned bells that are struck with a hammer; used as an orchestral instrument

gong (verb)	tam-tam (verb)
sound a gong