kyo-chiku vs bamboo

kyo-chiku and bamboo both are nouns.

Word	Noun	Adjective	Verb	Adverb
kyo-chiku	Yes	No	No	No
bamboo	Yes	No	No	No

As nouns, bamboo is a hypernym of kyo-chiku; that is, bamboo is a word with a broader meaning than kyo-chiku:

kyo-chiku: immense tropical southeast Asian bamboo with tough hollow culms that resemble tree trunks
bamboo: woody tropical grass having hollow woody stems; mature canes used for construction and furniture

kyo-chiku (noun)	bamboo (noun)
immense tropical southeast Asian bamboo with tough hollow culms that resemble tree trunks	woody tropical grass having hollow woody stems; mature canes used for construction and furniture
	the hard woody stems of bamboo plants; used in construction and crafts and fishing poles