chute vs coal chute

chute and coal chute both are nouns.

Word	Noun	Adjective	Verb	Adverb
chute	Yes	No	Yes	No
coal chute	Yes	No	No	No

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

Other hyponyms of chute include glacier mill, moulin, runway, water chute.

chute (noun)	coal chute (noun)
sloping channel through which things can descend	a chute for coal
rescue equipment consisting of a device that fills with air and retards your fall

chute (verb)	coal chute (verb)
jump from an airplane and descend with a parachute