voyage vs spaceflight

voyage and spaceflight both are nouns.

Word	Noun	Adjective	Verb	Adverb
voyage	Yes	No	Yes	No
spaceflight	Yes	No	No	No

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

Other hyponyms of voyage include crossing, space travel, spacefaring.

voyage (noun)	spaceflight (noun)
a journey to some distant place	a voyage outside the Earth's atmosphere
an act of traveling by water

voyage (verb)	spaceflight (verb)
travel on water propelled by wind or by other means