rubber vs buna rubber

buna rubber vs rubber

rubber and buna rubber both are nouns.

rubber is an adjective but buna rubber is not an adjective.

rubber is a verb but buna rubber is not a verb.

Word	Noun	Adjective	Verb	Adverb
rubber	Yes	Yes	Yes	No
buna rubber	Yes	No	No	No

As nouns, buna rubber is a hyponym of rubber; that is, buna rubber is a word with a more specific, narrower meaning than rubber:

rubber: any of various synthetic elastic materials whose properties resemble natural rubber
buna rubber: made by polymerizing butadiene

Other hyponyms of rubber include silicone rubber, neoprene, buna, butyl rubber.

rubber (noun)	buna rubber (noun)
a waterproof overshoe that protects shoes from water or snow	made by polymerizing butadiene
contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse
an eraser made of rubber (or of a synthetic material with properties similar to rubber); commonly mounted at one end of a pencil
a contest consisting of a series of successive matches between the same sides
an elastic material obtained from the latex sap of trees (especially trees of the genera Hevea and Ficus) that can be vulcanized and finished into a variety of products
any of various synthetic elastic materials whose properties resemble natural rubber

rubber (adjective)	buna rubber (adjective)
returned for lack of funds

rubber (verb)	buna rubber (verb)
coat or impregnate with rubber

Difference between rubber and buna rubber

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